Here I am upgrading my Flutter 2.5 to 2.8. When I tried to run my previous existing project, I found this error. But in 2.5 it works everything perfectly.
I am trying this from StackOverflow: The same issue, But I am couldn't solve by this
I found this error --
[satota_app] flutter pub get
Running "flutter pub get" in satota_app...
Because google_maps_place_picker >=2.0.0-nullsafety.0 depends on provider ^5.0.0 and no versions of google_maps_place_picker match >=2.0.0-nullsafety <2.0.0-nullsafety.0, google_maps_place_picker >=2.0.0-nullsafety requires provider ^5.0.0.
So, because satota_app depends on both provider ^6.0.2 and google_maps_place_picker ^2.0.0-nullsafety, version solving failed.
pub get failed (1; So, because satota_app depends on both provider ^6.0.2 and google_maps_place_picker ^2.0.0-nullsafety, version solving failed.)
exit code 1
How can I solve this problem?
Launching lib\main.dart on vivo 1820 in debug mode...
lib\main.dart:1
/C:/Users/ramja/Documents/DartConfig/flutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_math_fork-0.3.3+1/lib/src/widgets/selectable.dart:407:7: Error: The non-abstract class 'InternalSelectableMathState' is missing implementations for these members:
- TextSelectionDelegate.copySelection
- TextSelectionDelegate.cutSelection
- TextSelectionDelegate.pasteText
- TextSelectionDelegate.selectAll
Try to either
- provide an implementation,
- inherit an implementation from a superclass or mixin,
- mark the class as abstract, or
- provide a 'noSuchMethod' implementation.
class InternalSelectableMathState extends State<InternalSelectableMath>
^^^^^^^^^^^^^^^^^^^^^^^^^^^
/C:/Users/ramja/Documents/DartConfig/flutterSDK/flutter/packages/flutter/lib/src/services/text_input.dart:985:8: Context: 'TextSelectionDelegate.copySelection' is defined here.
void copySelection(SelectionChangedCause cause);
^^^^^^^^^^^^^
/C:/Users/ramja/Documents/DartConfig/flutterSDK/flutter/packages/flutter/lib/src/services/text_input.dart:965:8: Context: 'TextSelectionDelegate.cutSelection' is defined here.
void cutSelection(SelectionChangedCause cause);
^^^^^^^^^^^^
/C:/Users/ramja/Documents/DartConfig/flutterSDK/flutter/packages/flutter/lib/src/services/text_input.dart:973:16: Context: 'TextSelectionDelegate.pasteText' is defined here.
Future<void> pasteText(SelectionChangedCause cause);
^^^^^^^^^
/C:/Users/ramja/Documents/DartConfig/flutterSDK/flutter/packages/flutter/lib/src/services/text_input.dart:979:8: Context: 'TextSelectionDelegate.selectAll' is defined here.
void selectAll(SelectionChangedCause cause);
^^^^^^^^^
2
FAILURE: Build failed with an exception.
* Where:
Script 'C:\Users\ramja\Documents\DartConfig\flutterSDK\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1070
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Users\ramja\Documents\DartConfig\flutterSDK\flutter\bin\flutter.bat'' finished with non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 44s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
My Pubspec.yml is :
name: satota_app
description: This is the flutter mobile application for satota
publish_to: 'none'
version: 2.0.0+10
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter
http:
provider: ^5.0.0
flutter_math_fork: #if I use any version of this package output is status code -1
json_annotation:
logging:
connectivity:
shimmer:
bordered_text:
flutter_html:
flutter_svg:
url_launcher:
toast:
shared_preferences:
flutter_icons:
dotted_line:
timeline_list:
progress_dialog:
after_init:
webview_flutter:
clipboard:
google_fonts:
flutter_rating_bar:
expandable:
dropdown_search:
flutter_countdown_timer:
splashscreen:
package_info:
intl_phone_number_input:
flutter_chat_bubble:
cupertino_icons:
carousel_slider:
cached_network_image:
timeline_tile:
shared_value:
rename:
permission_handler:
image_picker:
flutter_facebook_auth:
google_sign_in:
google_maps_place_picker: ^2.0.0-nullsafety
firebase_messaging:
one_context:
social_share:
flutter_typeahead:
photo_view:
intl:
dev_dependencies:
flutter_test:
sdk: flutter
build_runner:
json_serializable:
flutter_launcher_icons:
google_maps_flutter:
flutter_icons:
android: true
ios: true
image_path: "assets/app_logo.png"
flutter:
uses-material-design: true
generate: true
assets:
- assets/
- dummy_assets/
thanks.......
