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View Code? Open in Web Editor NEWClone of Flappy Bird game on Flutter.
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bye
Running well but one exception keep showing..
Any idea?
════════ Exception caught by scheduler library ═════════════════════════════════
The following assertion was thrown during a scheduler callback:
Failed assertion: boolean expression must not be null
Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
https://github.com/flutter/flutter/issues/new?template=BUG.md
When the exception was thrown, this was the stack
#0 Animation.update
package:flame/animation.dart:149
#1 AnimationComponent.update
package:flame/components/animation_component.dart:49
#2 BirdGround.update
package:flutter_bird/game/bird.dart:115
#3 Bird.update
package:flutter_bird/game/bird.dart:81
#4 FlutterBirdGame.update
package:flutter_bird/game/game.dart:83
...
This exception was thrown in the context of a scheduler callback. When the scheduler callback was registered (as opposed to when the exception was thrown), this was the stack
#0 new _FrameCallbackEntry.
package:flutter/…/scheduler/binding.dart:112
#1 new _FrameCallbackEntry
package:flutter/…/scheduler/binding.dart:115
#2 SchedulerBinding.scheduleFrameCallback
package:flutter/…/scheduler/binding.dart:459
#3 _GameRenderBox._scheduleTick
package:flame/game.dart:108
#4 _GameRenderBox._tick
package:flame/game.dart:117
...
════════════════════════════════════════════════════════════════════════════════
Can't run after pulling code
Environment configuration of my computer:
Flutter 2.2.2
Dart 2.13.3
An error is reported after executing the "flutter run":
xxx@xxxMBP Flutter.Bird % flutter run
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Warning
──────────────────────────────────────────────────────────────────────────────
Your Flutter application is created using an older version of the Android
embedding. It's being deprecated in favor of Android embedding v2. Follow the
steps at
https://flutter.dev/go/android-project-migration
to migrate your project.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Using hardware rendering with device Android SDK built for x86. If you notice graphics artifacts, consider enabling software rendering with "--enable-software-rendering".
Launching lib/main.dart on Android SDK built for x86 in debug mode...
[!] Your app isn't using AndroidX.
To avoid potential build failures, you can quickly migrate your app by following the steps on https://goo.gl/CP92wY .
../../.pub-cache/hosted/pub.dartlang.org/flame-0.15.2/lib/flame.dart:62:7: Error: The non-abstract class 'FlameBiding' is missing implementations for these members:
- SchedulerBinding.addPersistentFrameCallback
- SchedulerBinding.addPostFrameCallback
- SchedulerBinding.addTimingsCallback
- SchedulerBinding.cancelFrameCallbackWithId
- SchedulerBinding.currentFrameTimeStamp
- SchedulerBinding.currentSystemFrameTimeStamp
- SchedulerBinding.debugAssertNoTransientCallbacks
- SchedulerBinding.endOfFrame
- SchedulerBinding.ensureFrameCallbacksRegistered
- SchedulerBinding.ensureVisualUpdate
- SchedulerBinding.framesEnabled
- SchedulerBinding.handleAppLifecycleStateChanged
- SchedulerBinding.handleBeginFrame
- SchedulerBinding.handleDrawFrame
- SchedulerBinding.handleEventLoopCallback
- SchedulerBinding.hasScheduledFrame
- SchedulerBinding.lifecycleState
- SchedulerBinding.removeTimingsCallback
- SchedulerBinding.resetEpoch
- SchedulerBinding.scheduleForcedFrame
- SchedulerBinding.scheduleFrame
- SchedulerBinding.scheduleFrameCallback
- SchedulerBinding.scheduleTask
- SchedulerBinding.scheduleWarmUpFrame
- SchedulerBinding.schedulerPhase
- SchedulerBinding.schedulingStrategy
- SchedulerBinding.transientCallbackCount
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 FlameBiding extends BindingBase with GestureBinding, ServicesBinding {
^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:647:8: Context: 'SchedulerBinding.addPersistentFrameCallback' is defined here.
void addPersistentFrameCallback(FrameCallback callback) {
^^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:673:8: Context: 'SchedulerBinding.addPostFrameCallback' is defined here.
void addPostFrameCallback(FrameCallback callback) {
^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:265:8: Context: 'SchedulerBinding.addTimingsCallback' is defined here.
void addTimingsCallback(TimingsCallback callback) {
^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:534:8: Context: 'SchedulerBinding.cancelFrameCallbackWithId' is defined here.
void cancelFrameCallbackWithId(int id) {
^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:932:16: Context: 'SchedulerBinding.currentFrameTimeStamp' is defined here.
Duration get currentFrameTimeStamp {
^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:950:16: Context: 'SchedulerBinding.currentSystemFrameTimeStamp' is defined here.
Duration get currentSystemFrameTimeStamp {
^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:560:8: Context: 'SchedulerBinding.debugAssertNoTransientCallbacks' is defined here.
bool debugAssertNoTransientCallbacks(String reason) {
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:688:20: Context: 'SchedulerBinding.endOfFrame' is defined here.
Future<void> get endOfFrame {
^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:726:8: Context: 'SchedulerBinding.ensureFrameCallbacksRegistered' is defined here.
void ensureFrameCallbacksRegistered() {
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:744:8: Context: 'SchedulerBinding.ensureVisualUpdate' is defined here.
void ensureVisualUpdate() {
^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:712:12: Context: 'SchedulerBinding.framesEnabled' is defined here.
bool get framesEnabled => _framesEnabled;
^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:351:8: Context: 'SchedulerBinding.handleAppLifecycleStateChanged' is defined here.
void handleAppLifecycleStateChanged(AppLifecycleState state) {
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:1024:8: Context: 'SchedulerBinding.handleBeginFrame' is defined here.
void handleBeginFrame(Duration? rawTimeStamp) {
^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:1075:8: Context: 'SchedulerBinding.handleDrawFrame' is defined here.
void handleDrawFrame() {
^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:453:8: Context: 'SchedulerBinding.handleEventLoopCallback' is defined here.
bool handleEventLoopCallback() {
^^^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:702:12: Context: 'SchedulerBinding.hasScheduledFrame' is defined here.
bool get hasScheduledFrame => _hasScheduledFrame;
^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:340:26: Context: 'SchedulerBinding.lifecycleState' is defined here.
AppLifecycleState? get lifecycleState => _lifecycleState;
^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:275:8: Context: 'SchedulerBinding.removeTimingsCallback' is defined here.
void removeTimingsCallback(TimingsCallback callback) {
^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:909:8: Context: 'SchedulerBinding.resetEpoch' is defined here.
void resetEpoch() {
^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:817:8: Context: 'SchedulerBinding.scheduleForcedFrame' is defined here.
void scheduleForcedFrame() {
^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:784:8: Context: 'SchedulerBinding.scheduleFrame' is defined here.
void scheduleFrame() {
^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:520:7: Context: 'SchedulerBinding.scheduleFrameCallback' is defined here.
int scheduleFrameCallback(FrameCallback callback, { bool rescheduling = false }) {
^^^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:395:13: Context: 'SchedulerBinding.scheduleTask' is defined here.
Future<T> scheduleTask<T>(
^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:851:8: Context: 'SchedulerBinding.scheduleWarmUpFrame' is defined here.
void scheduleWarmUpFrame() {
^^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:706:22: Context: 'SchedulerBinding.schedulerPhase' is defined here.
SchedulerPhase get schedulerPhase => _schedulerPhase;
^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:369:22: Context: 'SchedulerBinding.schedulingStrategy' is defined here.
SchedulingStrategy schedulingStrategy = defaultSchedulingStrategy;
^^^^^^^^^^^^^^^^^^
../../flutter/packages/flutter/lib/src/scheduler/binding.dart:499:11: Context: 'SchedulerBinding.transientCallbackCount' is defined here.
int get transientCallbackCount => _transientCallbacks.length;
^^^^^^^^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/flame-0.15.2/lib/flame.dart:62:7: Error: '_FlameBiding&BindingBase&GestureBinding' doesn't implement 'SchedulerBinding' so it can't be used with 'ServicesBinding'.
- 'BindingBase with GestureBinding' is from 'package:flame/flame.dart' ('../../.pub-cache/hosted/pub.dartlang.org/flame-0.15.2/lib/flame.dart').
- 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart' ('../../flutter/packages/flutter/lib/src/scheduler/binding.dart').
- 'ServicesBinding' is from 'package:flutter/src/services/binding.dart' ('../../flutter/packages/flutter/lib/src/services/binding.dart').
class FlameBiding extends BindingBase with GestureBinding, ServicesBinding {
^
../../.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_provider.dart:49:45: Error: No named parameter with the name 'nullOk'.
locale: Localizations.localeOf(context, nullOk: true),
^^^^^^
../../flutter/packages/flutter/lib/src/widgets/localizations.dart:413:17: Context: Found this candidate, but the arguments don't match.
static Locale localeOf(BuildContext context) {
^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_stream.dart:92:3: Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
PictureStream();
^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.14.4/lib/src/picture_stream.dart:192:16: Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
abstract class PictureStreamCompleter extends Diagnosticable {
^
FAILURE: Build failed with an exception.
* Where:
Script '/Users/xxx/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 1035
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/Users/xxx/flutter/bin/flutter'' 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 13s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done 14.7s
Exception: Gradle task assembleDebug failed with exit code 1
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