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[mofada]

The following assertion was thrown building NotificationListener<ScrollNotification>:
Unexpected call to replaceSemanticsActions() method of RawGestureDetectorState.

The replaceSemanticsActions() method can only be called outside of the build phase.
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
When the exception was thrown, this was the stack: 
#0      RawGestureDetectorState.replaceSemanticsActions.<anonymous closure> (package:flutter/src/widgets/gesture_detector.dart:948:9)
#1      RawGestureDetectorState.replaceSemanticsActions (package:flutter/src/widgets/gesture_detector.dart:954:6)
#2      ScrollableState.setSemanticsActions (package:flutter/src/widgets/scrollable.dart:382:40)
#3      ScrollPosition._updateSemanticActions (package:flutter/src/widgets/scroll_position.dart:445:13)
#4      ScrollPosition.notifyListeners (package:flutter/src/widgets/scroll_position.dart:700:5)
...
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (2) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (3) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (4) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (5) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (6) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (7) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (8) Exception caught by widgets library ═══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (9) Exception caught by scheduler library ═════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (10) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (11) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (12) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (13) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (14) Exception caught by scheduler library ════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (15) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (16) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (17) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (18) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (19) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (20) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (21) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (22) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (23) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (24) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (25) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (26) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (27) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (28) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (29) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (30) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (31) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (32) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (33) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (34) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (35) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (36) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (37) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (38) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (39) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (40) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (41) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (42) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (43) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (44) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (45) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (46) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (47) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (48) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (49) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (50) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (51) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (52) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (53) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (54) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════
E/flutter (29568): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: 'package:flutter/src/widgets/scroll_controller.dart': Failed assertion: line 111 pos 12: '_positions.length == 1': ScrollController attached to multiple scroll views.
E/flutter (29568): #0      _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:40:39)
E/flutter (29568): #1      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:36:5)
E/flutter (29568): #2      ScrollController.position (package:flutter/src/widgets/scroll_controller.dart:111:12)
E/flutter (29568): #3      _TransformerPageViewState._calcCurrentPixels (package:transformer_page_view/transformer_page_view.dart:404:25)
E/flutter (29568): #4      _TransformerPageViewState.build.<anonymous closure> (package:transformer_page_view/transformer_page_view.dart:436:13)
E/flutter (29568): #5      NotificationListener._dispatch (package:flutter/src/widgets/notification_listener.dart:127:27)
E/flutter (29568): #6      Notification.visitAncestor (package:flutter/src/widgets/notification_listener.dart:45:20)
E/flutter (29568): #7      _ScrollNotification&LayoutChangedNotification&ViewportNotificationMixin.visitAncestor (package:flutter/src/widgets/scroll_notification.dart:31:18)
E/flutter (29568): #8      Element.visitAncestorElements (package:flutter/src/widgets/framework.dart:3502:39)
E/flutter (29568): #9      Notification.dispatch (package:flutter/src/widgets/notification_listener.dart:61:13)
E/flutter (29568): #10     ScrollActivity.dispatchScrollEndNotification (package:flutter/src/widgets/scroll_activity.dart:106:63)
E/flutter (29568): #11     ScrollPosition.didEndScroll (package:flutter/src/widgets/scroll_position.dart:670:14)
E/flutter (29568): #12     ScrollPosition.beginActivity (package:flutter/src/widgets/scroll_position.dart:639:9)
E/flutter (29568): #13     ScrollPositionWithSingleContext.beginActivity (package:flutter/src/widgets/scroll_position_with_single_context.dart:116:11)
E/flutter (29568): #14     ScrollPositionWithSingleContext.goIdle (package:flutter/src/widgets/scroll_position_with_single_context.dart:131:5)
E/flutter (29568): #15     ScrollPositionWithSingleContext.goBallistic (package:flutter/src/widgets/scroll_position_with_single_context.dart:150:7)
E/flutter (29568): #16     BallisticScrollActivity._end (package:flutter/src/widgets/scroll_activity.dart:551:15)
E/flutter (29568): #17     _rootRun (dart:async/zone.dart:1120:38)
E/flutter (29568): #18     _CustomZone.run (dart:async/zone.dart:1021:19)
E/flutter (29568): #19     _FutureListener.handleWhenComplete (dart:async/future_impl.dart:150:18)
E/flutter (29568): #20     Future._propagateToListeners.handleWhenCompleteCallback (dart:async/future_impl.dart:609:39)
E/flutter (29568): #21     Future._propagateToListeners (dart:async/future_impl.dart:665:37)
E/flutter (29568): #22     Future._completeWithValue (dart:async/future_impl.dart:483:5)
E/flutter (29568): #23     Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:513:7)
E/flutter (29568): #24     _rootRun (dart:async/zone.dart:1124:13)
E/flutter (29568): #25     _CustomZone.run (dart:async/zone.dart:1021:19)
E/flutter (29568): #26     _CustomZone.runGuarded (dart:async/zone.dart:923:7)
E/flutter (29568): #27     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:963:23)
E/flutter (29568): #28     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
E/flutter (29568): #29     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
E/flutter (29568): 

════════ (55) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (56) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (57) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (58) Exception caught by widgets library ══════════════════════════════════════════════════
ScrollController attached to multiple scroll views.
'package:flutter/src/widgets/scroll_controller.dart':
Failed assertion: line 111 pos 12: '_positions.length == 1'
User-created ancestor of the error-causing widget was: 
  Swiper file:///F:/WorkSpace/Flutter/bole_student/lib/ui/classes/classes_schedule_page.dart:56:26
════════════════════════════════════════════════════════════════════════════════════════════════════

[jjjachyty]

+1