[CLOSED] Cannot read property 'file' of null

[core-ai-bot]

Issue by ficristo
Friday Jul 29, 2016 at 13:45 GMT
Originally opened as adobe/brackets#12629

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I was running in this today:

ErrorNotification.js:125 Exception in 'activeEditorChange' listener on Object {_eventHandlers: Object, _EventDispatcher: true} TypeError: Cannot read property 'file' of null TypeError: Cannot read property 'file' of null
    at file:///C:/Program%20Files%20(x86)/Brackets/dev/src/extensions/default/NavigationAndHistory/main.js:594:27
    at t (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/thirdparty/lodash.js:6:249)
    at Function.findIndex (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/thirdparty/lodash.js:28:324)
    at _addToMROFList (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/extensions/default/NavigationAndHistory/main.js:593:23)
    at _handleActiveEditorChange (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/extensions/default/NavigationAndHistory/main.js:790:13)
    at Object.trigger (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/utils/EventDispatcher.js:233:40)
    at _notifyActiveEditorChanged (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/editor/EditorManager.js:165:17)
    at _handleCurrentFileChange (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/editor/EditorManager.js:182:9)
    at Object.trigger (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/utils/EventDispatcher.js:233:40)
    at file:///C:/Program%20Files%20(x86)/Brackets/dev/src/view/MainViewManager.js:1109:29window.console.error`@` ErrorNotification.js:125trigger`@` EventDispatcher.js:235_notifyActiveEditorChanged`@` EditorManager.js:165_handleCurrentFileChange`@` EditorManager.js:182trigger`@` EventDispatcher.js:233(anonymous function)`@` MainViewManager.js:1109trigger`@` EventDispatcher.js:233Pane._notifyCurrentViewChange`@` Pane.js:894Pane.showView`@` Pane.js:1206_showEditor`@` EditorManager.js:571openDocument`@` EditorManager.js:643_edit`@` MainViewManager.js:1201(anonymous function)`@` MainViewManager.js:1265j`@` jquery-2.1.3.min.js:2k.fireWith`@` jquery-2.1.3.min.js:2e.(anonymous function)`@` jquery-2.1.3.min.js:2(anonymous function)`@` DocumentManager.js:379j`@` jquery-2.1.3.min.js:2k.fireWith`@` jquery-2.1.3.min.js:2e.(anonymous function)`@` jquery-2.1.3.min.js:2(anonymous function)`@` FileUtils.js:83(anonymous function)`@` File.js:125(anonymous function)`@` AppshellFileSystem.js:378
EventDispatcher.js:236 Assertion failed:trigger`@` EventDispatcher.js:236_notifyActiveEditorChanged`@` EditorManager.js:165_handleCurrentFileChange`@` EditorManager.js:182trigger`@` EventDispatcher.js:233(anonymous function)`@` MainViewManager.js:1109trigger`@` EventDispatcher.js:233Pane._notifyCurrentViewChange`@` Pane.js:894Pane.showView`@` Pane.js:1206_showEditor`@` EditorManager.js:571openDocument`@` EditorManager.js:643_edit`@` MainViewManager.js:1201(anonymous function)`@` MainViewManager.js:1265j`@` jquery-2.1.3.min.js:2k.fireWith`@` jquery-2.1.3.min.js:2e.(anonymous function)`@` jquery-2.1.3.min.js:2(anonymous function)`@` DocumentManager.js:379j`@` jquery-2.1.3.min.js:2k.fireWith`@` jquery-2.1.3.min.js:2e.(anonymous function)`@` jquery-2.1.3.min.js:2(anonymous function)`@` FileUtils.js:83(anonymous function)`@` File.js:125(anonymous function)`@` AppshellFileSystem.js:378
ErrorNotification.js:125 Exception in 'currentFileChange' listener on Object {_EventDispatcher: true, ALL_PANES: "ALL_PANES", ACTIVE_PANE: "ACTIVE_PANE", FIRST_PANE: "first-pane", SECOND_PANE: "second-pane"…} TypeError: Cannot read property 'file' of null TypeError: Cannot read property 'file' of null
    at file:///C:/Program%20Files%20(x86)/Brackets/dev/src/extensions/default/NavigationAndHistory/main.js:594:27
    at t (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/thirdparty/lodash.js:6:249)
    at Function.findIndex (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/thirdparty/lodash.js:28:324)
    at _addToMROFList (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/extensions/default/NavigationAndHistory/main.js:593:23)
    at handleCurrentFileChange (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/extensions/default/NavigationAndHistory/main.js:777:10)
    at Object.trigger (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/utils/EventDispatcher.js:233:40)
    at file:///C:/Program%20Files%20(x86)/Brackets/dev/src/view/MainViewManager.js:1109:29
    at Pane.trigger (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/utils/EventDispatcher.js:233:40)
    at Pane._notifyCurrentViewChange (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/view/Pane.js:894:14)
    at Pane.showView (file:///C:/Program%20Files%20(x86)/Brackets/dev/src/view/Pane.js:1206:14)window.console.error`@` ErrorNotification.js:125trigger`@` EventDispatcher.js:235(anonymous function)`@` MainViewManager.js:1109trigger`@` EventDispatcher.js:233Pane._notifyCurrentViewChange`@` Pane.js:894Pane.showView`@` Pane.js:1206_showEditor`@` EditorManager.js:571openDocument`@` EditorManager.js:643_edit`@` MainViewManager.js:1201(anonymous function)`@` MainViewManager.js:1265j`@` jquery-2.1.3.min.js:2k.fireWith`@` jquery-2.1.3.min.js:2e.(anonymous function)`@` jquery-2.1.3.min.js:2(anonymous function)`@` DocumentManager.js:379j`@` jquery-2.1.3.min.js:2k.fireWith`@` jquery-2.1.3.min.js:2e.(anonymous function)`@` jquery-2.1.3.min.js:2(anonymous function)`@` FileUtils.js:83(anonymous function)`@` File.js:125(anonymous function)`@` AppshellFileSystem.js:378
EventDispatcher.js:236 Assertion failed:

There are some null values in _mrofList. We should be sure this never happen or check for them.
/cc@swmitra

[core-ai-bot]

Comment by petetnt
Friday Jul 29, 2016 at 14:30 GMT

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Related to #12608?

[core-ai-bot]

Comment by ficristo
Wednesday Jun 28, 2017 at 18:07 GMT

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Hopefully fixed by adobe/brackets#13418