Try updating pubspec

pubspec.lock

@@ -324,35 +324,35 @@ packages:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0-nullsafety.1"
+    version: "2.0.0"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0-nullsafety"
+    version: "2.0.0"
   path_provider_macos:
     dependency: transitive
     description:
       name: path_provider_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.0.5-nullsafety"
+    version: "2.0.0"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0-nullsafety"
+    version: "2.0.0"
   path_provider_windows:
     dependency: transitive
     description:
       name: path_provider_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.0-nullsafety.3"
+    version: "2.0.0"
   pedantic:
     dependency: "direct dev"
     description:
@@ -373,7 +373,7 @@ packages:
       name: plugin_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "2.0.0"
   pool:
     dependency: transitive
     description:
@@ -394,7 +394,7 @@ packages:
       name: provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.0.0-nullsafety.4"
+    version: "5.0.0-nullsafety.5"
   pub_semver:
     dependency: transitive
     description:
@@ -443,7 +443,7 @@ packages:
       name: shelf_web_socket
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.4"
+    version: "0.2.4+1"
   shrine_images:
     dependency: "direct main"
     description:
@@ -518,7 +518,7 @@ packages:
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.16.2"
+    version: "1.16.3"
   test_api:
     dependency: transitive
     description:
@@ -546,42 +546,42 @@ packages:
       name: url_launcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.0.0-nullsafety.7"
+    version: "6.0.0"
   url_launcher_linux:
     dependency: transitive
     description:
       name: url_launcher_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.0-nullsafety.3"
+    version: "2.0.0"
   url_launcher_macos:
     dependency: transitive
     description:
       name: url_launcher_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.0-nullsafety.2"
+    version: "2.0.0"
   url_launcher_platform_interface:
     dependency: transitive
     description:
       name: url_launcher_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0-nullsafety.1"
+    version: "2.0.1"
   url_launcher_web:
     dependency: transitive
     description:
       name: url_launcher_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0-nullsafety"
+    version: "2.0.0"
   url_launcher_windows:
     dependency: transitive
     description:
       name: url_launcher_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.0-nullsafety.2"
+    version: "2.0.0"
   vector_math:
     dependency: "direct main"
     description:
@@ -616,7 +616,7 @@ packages:
       name: web_socket_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "2.0.0"
   webdriver:
     dependency: transitive
     description: