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Published 20 hours ago • verified publisher icon jerseysu

Error waiting for no transient callbacks from Flutter driver: `Failed assertion: boolean expression must not be null`

Open comerc opened this issue 5 years ago • 3 comments
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Using device Android SDK built for x86.
Starting application: test_driver/app.dart
Installing build/app/outputs/flutter-apk/app.apk...                 4,3s
[!] 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 .
Running Gradle task 'assembleDebug'...                                  
Running Gradle task 'assembleDebug'... Done                        18,7s
✓ Built build/app/outputs/flutter-apk/app-debug.apk.
I/flutter ( 5883): Observatory listening on http://127.0.0.1:42852/XnwWdV-4asg=/
Starting Flutter app under test 'test_driver/app.dart', this might take a few moments
I/flutter ( 5954): Observatory listening on http://127.0.0.1:50758/5FACdXdbDug=/
before run hook
VMServiceFlutterDriver: Connecting to Flutter application at http://127.0.0.1:38029/5FACdXdbDug=/
VMServiceFlutterDriver: Isolate found with number: 3671038823464699
VMServiceFlutterDriver: Isolate is not paused. Assuming application is ready.
VMServiceFlutterDriver: Connected to Flutter application.
running hook before scenario 'Check App Title And Content'
Running scenario: Check App Title And Content # ./test_driver/features/hello_world.feature:3
   √ Given I expect the "firstTabTitle" to be "Jeresy Cool!" # ./test_driver/features/hello_world.feature:4 took 129ms
   √ Then I expect the "textField" to be "Hello, Jersey!" # ./test_driver/features/hello_world.feature:5 took 54ms
PASSED: Scenario Check App Title And Content # ./test_driver/features/hello_world.feature:3
Restarting Flutter app under test
running hook after scenario 'Check App Title And Content'
VMServiceFlutterDriver: Connecting to Flutter application at http://127.0.0.1:38029/5FACdXdbDug=/
Error waiting for no transient callbacks from Flutter driver:

`Failed assertion: boolean expression must not be null`

#0      VMServiceFlutterDriver.sendCommand (package:flutter_driver/src/driver/vmservice_driver.dart:351:29)
<asynchronous suspension>
#1      FlutterDriver.waitUntilNoTransientCallbacks (package:flutter_driver/src/driver/driver.dart:230:11)
#2      FlutterWorld._closeDriver (package:flutter_gherkin/src/flutter/flutter_world.dart:49:14)
#3      FlutterWorld.dispose (package:flutter_gherkin/src/flutter/flutter_world.dart:40:11)
#4      FeatureFileRunner._runScenario (package:gherkin/src/feature_file_runner.dart:276:16)
<asynchronous suspension>
#5      FeatureFileRunner._runScenarioInZone.<anonymous closure> (package:gherkin/src/feature_file_runner.dart:142:30)
#6      _rootRun (dart:async/zone.dart:1190:13)
#7      _CustomZone.run (dart:async/zone.dart:1093:19)
#8      _runZoned (dart:async/zone.dart:1630:10)
#9      runZonedGuarded (dart:async/zone.dart:1618:12)
#10     runZoned (dart:async/zone.dart:1547:12)
#11     FeatureFileRunner._runScenarioInZone (package:gherkin/src/feature_file_runner.dart:140:5)
#12     FeatureFileRunner._runFeature (package:gherkin/src/feature_file_runner.dart:74:21)
<asynchronous suspension>
#13     FeatureFileRunner.run (package:gherkin/src/feature_file_runner.dart:41:38)
#14     GherkinRunner.execute (package:gherkin/src/test_runner.dart:86:45)
<asynchronous suspension>
#15     main (file:///home/aka/try-flutter/flutter_bdd/test_driver/app_test.dart:32:26)
#16     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:301:19)
#17     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

VMServiceFlutterDriver: Isolate found with number: 1298931021565975
VMServiceFlutterDriver: Isolate is not paused. Assuming application is ready.
VMServiceFlutterDriver: Connected to Flutter application.
running hook before scenario 'Check App Title When Switch Page'
Running scenario: Check App Title When Switch Page # ./test_driver/features/hello_world.feature:7
Instance of 'VMServiceFlutterDriver'
   √ Given I go to second page # ./test_driver/features/hello_world.feature:8 took 611ms
Instance of 'VMServiceFlutterDriver'
   √ Then I expect second page title to be "Jersey Second Tab" # ./test_driver/features/hello_world.feature:9 took 201ms
Instance of 'VMServiceFlutterDriver'
   √ When I go to landing page # ./test_driver/features/hello_world.feature:10 took 453ms
Instance of 'VMServiceFlutterDriver'
   √ Then I expect landing page title to be "Jeresy Cool!" # ./test_driver/features/hello_world.feature:11 took 88ms
PASSED: Scenario Check App Title When Switch Page # ./test_driver/features/hello_world.feature:7
Restarting Flutter app under test
running hook after scenario 'Check App Title When Switch Page'
VMServiceFlutterDriver: Connecting to Flutter application at http://127.0.0.1:38029/5FACdXdbDug=/
Error waiting for no transient callbacks from Flutter driver:

`Failed assertion: boolean expression must not be null`

#0      VMServiceFlutterDriver.sendCommand (package:flutter_driver/src/driver/vmservice_driver.dart:351:29)
<asynchronous suspension>
#1      FlutterDriver.waitUntilNoTransientCallbacks (package:flutter_driver/src/driver/driver.dart:230:11)
#2      FlutterWorld._closeDriver (package:flutter_gherkin/src/flutter/flutter_world.dart:49:14)
#3      FlutterWorld.dispose (package:flutter_gherkin/src/flutter/flutter_world.dart:40:11)
#4      FeatureFileRunner._runScenario (package:gherkin/src/feature_file_runner.dart:276:16)
<asynchronous suspension>
#5      FeatureFileRunner._runScenarioInZone.<anonymous closure> (package:gherkin/src/feature_file_runner.dart:142:30)
#6      _rootRun (dart:async/zone.dart:1190:13)
#7      _CustomZone.run (dart:async/zone.dart:1093:19)
#8      _runZoned (dart:async/zone.dart:1630:10)
#9      runZonedGuarded (dart:async/zone.dart:1618:12)
#10     runZoned (dart:async/zone.dart:1547:12)
#11     FeatureFileRunner._runScenarioInZone (package:gherkin/src/feature_file_runner.dart:140:5)
#12     FeatureFileRunner._runFeature (package:gherkin/src/feature_file_runner.dart:74:21)
<asynchronous suspension>
#13     FeatureFileRunner.run (package:gherkin/src/feature_file_runner.dart:41:38)
#14     GherkinRunner.execute (package:gherkin/src/test_runner.dart:86:45)
<asynchronous suspension>
#15     main (file:///home/aka/try-flutter/flutter_bdd/test_driver/app_test.dart:32:26)
#16     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:301:19)
#17     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

VMServiceFlutterDriver: Isolate found with number: 248221512356987
VMServiceFlutterDriver: Isolate is not paused. Assuming application is ready.
VMServiceFlutterDriver: Connected to Flutter application.
running hook before scenario 'Check Counter Number'
Running scenario: Check Counter Number # ./test_driver/features/counter.feature:3
   √ Given I expect the "counterTextField" to be "0" # ./test_driver/features/counter.feature:4 took 234ms
Instance of 'VMServiceFlutterDriver'
   √ When I tap the "addBtn" button 20 times # ./test_driver/features/counter.feature:5 took 5140ms
   √ Then I expect the "counterTextField" to be "20" # ./test_driver/features/counter.feature:6 took 62ms
PASSED: Scenario Check Counter Number # ./test_driver/features/counter.feature:3
Restarting Flutter app under test
running hook after scenario 'Check Counter Number'
3 scenarios (3 passed)
9 steps (9 passed)
0:00:21.211000
Terminating Flutter app under test
Error waiting for no transient callbacks from Flutter driver:

`Failed assertion: boolean expression must not be null`

#0      VMServiceFlutterDriver.sendCommand (package:flutter_driver/src/driver/vmservice_driver.dart:351:29)
<asynchronous suspension>
#1      FlutterDriver.waitUntilNoTransientCallbacks (package:flutter_driver/src/driver/driver.dart:230:11)
#2      FlutterWorld._closeDriver (package:flutter_gherkin/src/flutter/flutter_world.dart:49:14)
#3      FlutterWorld.dispose (package:flutter_gherkin/src/flutter/flutter_world.dart:40:11)
#4      FeatureFileRunner._runScenario (package:gherkin/src/feature_file_runner.dart:276:16)
<asynchronous suspension>
#5      FeatureFileRunner._runScenarioInZone.<anonymous closure> (package:gherkin/src/feature_file_runner.dart:142:30)
#6      _rootRun (dart:async/zone.dart:1190:13)
#7      _CustomZone.run (dart:async/zone.dart:1093:19)
#8      _runZoned (dart:async/zone.dart:1630:10)
#9      runZonedGuarded (dart:async/zone.dart:1618:12)
#10     runZoned (dart:async/zone.dart:1547:12)
#11     FeatureFileRunner._runScenarioInZone (package:gherkin/src/feature_file_runner.dart:140:5)
#12     FeatureFileRunner._runFeature (package:gherkin/src/feature_file_runner.dart:74:21)
<asynchronous suspension>
#13     FeatureFileRunner.run (package:gherkin/src/feature_file_runner.dart:41:38)
#14     GherkinRunner.execute (package:gherkin/src/test_runner.dart:86:45)
<asynchronous suspension>
#15     main (file:///home/aka/try-flutter/flutter_bdd/test_driver/app_test.dart:32:26)
#16     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:301:19)
#17     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

after run hook
Stopping application instance.

comerc avatar Nov 09 '20 06:11 comerc 

$ flutter doctor -v
Waiting for another flutter command to release the startup lock...
[✓] Flutter (Channel stable, 1.22.2, on Linux, locale ru_RU.UTF-8)
    • Flutter version 1.22.2 at /home/aka/flutter
    • Framework revision 84f3d28555 (3 недели назад), 2020-10-15 16:26:19 -0700
    • Engine revision b8752bbfff
    • Dart version 2.10.2

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at /home/aka/Android/Sdk
    • Platform android-30, build-tools 29.0.2
    • Java binary at: /usr/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.9+11-Ubuntu-0ubuntu1.18.04.1)
    ✗ Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/linux#android-setup for more details.

[!] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/linux#android-setup for detailed instructions).

[✓] Connected device (1 available)
    • Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 6.0 (API 23) (emulator)

! Doctor found issues in 2 categories.

comerc avatar Nov 09 '20 06:11 comerc

@comerc Thanks for reporting the issue, and thanks for keeps supporting this project, looking into the error message you provided, $ flutter doctor -v shows the suspicious error as follow, could you recheck your environment and make sure the Android Studio and license is installed properly? thanks!!

[!] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/linux#android-setup for detailed instructions).

jerseysu avatar Dec 12 '20 13:12 jerseysu

Hi @comerc I've upgrade the flutter to 2.0.1 version and do fix the issue, please pull down the master branch and rerun again to see if the issue mitigated, thanks!

jerseysu avatar Mar 16 '21 14:03 jerseysu