I'm beginner for flutter. After coding something I want to simulate codes for Android emulator. I could run successfully a few days ago but today I can't. Error code says unable to find package java.lang. I didn't find where I should look for find problem. SDK path is correct, flutter doctor didn't find any problem. Also I can run project with iOS emulator. I am working on MacOS. Here whole error information.
Fatal Error: Unable to find package java.lang in classpath or bootclasspath
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':location:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.
* 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 7s
Gradle task assembleDebug failed with exit code 1
You may want to run with verbose enabled, flutter run -v. Then you can find the possible error and warnings. It also happens when your code is incompatible to the gradle version. And the solution for it is to delete .gradle from your use home folder, then on next build flutter will redownload compatible gradle version. In case of Linux, rm -rf ~/.gradle.
Main problem is about packages. Some of them needs android migrate to androidx. When project migrated androidx, problem is solved.
Documentation
Related
I was building a flutter app in a Windows machine and I stopped working on it for several months, after that I now get issues on running the app. It shows those two errors:
FAILURE: Build completed with 2 failures.
1: Task failed with an exception.
Where:
Build file 'C:\Users\okeyr\AppData\Local\Pub\Cache\hosted\pub.dev\flutter_tts-3.6.3\android\build.gradle' line: 31
What went wrong:
A problem occurred evaluating project ':flutter_tts'.
org/gradle/api/services/BuildService
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.
==============================================================================
2: Task failed with an exception.
Where:
Script 'C:\Program Files\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 463
What went wrong:
A problem occurred configuring project ':flutter_tts'.
Failed to notify project evaluation listener.
Cannot invoke method substring() on null object
compileSdkVersion is not specified.
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
Flutter doctor shows everything fine except:
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
But I don't think the issue is related with that.
I've I look in depth at failure number 1. I have check the file that gives the error and I found that in line 31:
apply plugin: 'kotlin-android'
So I just went to the file and deleted all the entries related with kotlin, because I am not using Kotlin (I guess).
Then if I rerun the app it now shows another error (related with tts again), but doesn't show the previous ones (not sure if I've moved forward or backwards)
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
C:\Users\okeyr\AndroidStudioProjects\fluttertestapp\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java:24: error: cannot find symbol
flutterEngine.getPlugins().add(new com.tundralabs.fluttertts.FlutterTtsPlugin());
^
symbol: class FlutterTtsPlugin
location: package com.tundralabs.fluttertts
1 error
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
Compilation failed; see the compiler error output for details.
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 16s
Exception: Gradle task assembleDebug failed with exit code 1
After doing a search I found many people with that similar issue (even though none was related to tts plugin) which had adressed it with a flutter pub cache repair or a flutter clean. However, a flutter clean gives me no changes and error persists and when I have executed flutter pub cache repair it had shown:
Failed to repair flutter_tts 3.6.3. Error:
Pub failed to delete entry because it was in use by another process.
This may be caused by a virus scanner or having a file
in the directory open in another application.
Reinstalled 29 packages.
Failed to reinstall 1 package:
flutter_tts 3.6.3
pub finished with exit code 69
Now, if I rerun the code it gives me new error:
The plugin flutter_tts doesn't have a main class defined in C:\Users\okeyr\AppData\Local\Pub\Cache\hosted\pub.dev\flutter_tts-3.6.3\android\src\main\java\com\tundralabs\fluttertts\FlutterTtsPlugin.java or C:\Users\okeyr\AppData\Local\Pub\Cache\hosted\pub.dev\flutter_tts-3.6.3\android\src\main\kotlin\com\tundralabs\fluttertts\FlutterTtsPlugin.kt. This is likely to due to an incorrect androidPackage: com.tundralabs.fluttertts or mainClass entry in the plugin's pubspec.yaml.
If you are the author of this plugin, fix the androidPackage entry or move the main class to any of locations used above. Otherwise, please contact the author of this plugin and consider using a different plugin in the meanwhile.
This error also appears when running pub get or pug upgrade. But if I run pub outdated it gives me that:
Showing outdated packages.
[*] indicates versions that are not the latest available.
Package Name Current Upgradable Resolvable Latest
direct dependencies: all up-to-date.
transitive dependencies:
characters *1.2.1 *1.2.1 *1.2.1 1.3.0
collection *1.17.0 *1.17.0 *1.17.0 1.17.1
js *0.6.5 *0.6.5 *0.6.5 0.6.7
meta *1.8.0 *1.8.0 *1.8.0 1.9.0
path *1.8.2 *1.8.2 *1.8.2 1.8.3
transitive dev_dependencies:
matcher *0.12.13 *0.12.13 *0.12.13 0.12.14
test_api *0.4.16 *0.4.16 *0.4.16 0.4.18
all dependencies are up-to-date.
Process finished with exit code 0
I can't see any dependency related with tts.
Now here I am stucked in that error, I don't know how to proceed. If there is someone who could help me see the light I'd be grateful. Thanks in advance.
I am trying to run the code but it seems tts package is not well defined, anyone that could bring me some help?
I'm new to using React and have been following along in a tutorial for a project to learn. Occasionally, I encounter an error that stops my progress, then I search the error, and I generally find some solution. But in this case, I am having a hell of a time. Part of the issue is that I am so new to developing software that I sometimes am unsure of how to implement someone's solution. And, in particular, this issue seems like it is not simply contained to a single project, which means that new projects I create with React are now also experiencing similar issues.
Here's the issue. When I use npm run android, I get the following output:
info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 1940 file(s) to forward-jetify. Using 4 workers...
info JS server already running.
info Launching emulator...
error Failed to launch emulator. Reason: Could not start emulator within 30 seconds..
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app...
> Configure project :react-native-reanimated
> No AAR for react-native-reanimated found. Attempting to build from source.
> Native libs debug enabled: false
> Android gradle plugin: 4.2.2
> Gradle: 7.2
> building Reanimated2
> Task :app:generatePackageList FAILED
Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.
You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.
See https://docs.gradle.org/7.2/userguide/command_line_interface.html#sec:command_line_warnings
10 actionable tasks: 3 executed, 7 up-to-date
FAILURE: Build failed with an exception.
* Where:
Script 'C:\\Users\\Astuertz\\Dev\\Values2\\node_modules#react-native-community\\cli-platform-android\\native_modules.gradle' line: 122
* What went wrong:
Execution failed for task ':app:generatePackageList'.
> argument type mismatch
* 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 8s
error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
FAILURE: Build failed with an exception.
* Where:
Script 'C:\\Users\\Astuertz\\Dev\\Values2\\node_modules#react-native-community\\cli-platform-android\\native_modules.gradle' line: 122
* What went wrong:
Execution failed for task ':app:generatePackageList'.
> argument type mismatch
* 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 8s
at checkExecSyncError (node:child_process:828:11)
at execFileSync (node:child_process:866:15)
at runOnAllDevices (C:\Users\Astuertz\Dev\Values2\node_modules\#react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:39)
at async Command.handleAction (C:\Users\Astuertz\Dev\Values2\node_modules\react-native\node_modules\#react-native-community\cli\build\index.js:182:9)
Someone had said that Gradle version 7 is incompatible with the current version of React and that it needs to be downgrade to version 7. I tried changing the version in the wrapper file for the Android folder, as well as taking someone's suggestion to change it in the Android Studio "Project Structure." In either case, the error either persisted or merely gave me a different error. What is going on here?
I've been trying to get my apps to run and compile but am in over my head.
This App Bundle contains native code, and you've not uploaded debug symbols. We recommend you upload a symbol file to make your crashes and ANRs easier to analyze and debug
FAILURE: Build failed with an exception.
Where:
Build file 'H:\Flutter_Projects\xylophone_app\android\app\build.gradle' line: 1
What went wrong:
A problem occurred evaluating project ':app'.
Could not get unknown property 'android' for project ':app' of type org.gradle.api.Project.
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 9s
Exception: Gradle task assembleDebug failed with exit code 1
As a requirement in uploading debug symbol files, version of the Android Gradle plugin is 4.1 or higher as mentioned in this SO post:
Before you can upload debug symbols files, you must be using Android
Gradle plugin version 4.1 or higher.
Looks like it will come only with Android Studio 4.1, because I can
only get Gradle 4.0.0 automatically now.
So I suggest you to return classic Play console and it will let you
through :)
And for the Flutter side, there is actually an open GitHub ticket that's being monitored by the Flutter team.
When I run my app an error message below is shown:
Launching lib\main.dart on AOSP on IA Emulator in debug mode…
lib\main.dart
FAILURE: Build failed with an exception.
What went wrong:
Could not open settings remapped class cache for bq3hllkgb26p0nrblf5gh8d37 (C:\Users\amabd.gradle\caches\5.6.2\scripts-remapped\settings_dok3hc1t57922ptib73pz9y10\bq3hllkgb26p0nrblf5gh8d37\settings8410a2d21ed2f87c8a0398566330ee52).
Could not open settings generic class cache for settings file ‘D:\projects\flutter\photo\photos\android\settings.gradle’ (C:\Users\amabd.gradle\caches\5.6.2\scripts\bq3hllkgb26p0nrblf5gh8d37\settings\settings8410a2d21ed2f87c8a0398566330ee52).
BUG! exception in phase ‘semantic analysis’ in source unit ‘BuildScript’ Unsupported class file major version 57
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 3s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
Could anyone help me to solve this problem?
Go to this folder and delete all cached files.
C:\Users\amabd.gradle\caches
Then try to restart the project.
I got the answer..
you should delete flutter SDK and reinstall it .then make the last update to it by:
flutter upgrade
I have the same problem after hours of searching and removing android studio. I downgraded java to java-8 and set java_home in OS and it worked like a charm.
I have implemented various methods but errors appear every time I run android.
If you delete the path_provier_macos folder, a linux error appears.
You are currently using path_provier: ^1.6.11. Lowering the path_provier version is the same.
Please tell me the solution.
Launching lib/main.dart on Android SDK built for x86 in debug mode...
Running Gradle task 'assembleDebug'...
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':path_provider:compileDebugAidl'.
> Could not resolve all task dependencies for configuration
':path_provider:debugCompileClasspath'.
> Could not resolve project :path_provider_macos.
Required by:
project :path_provider
> Unable to find a matching configuration of project :path_provider_macos:
- None of the consumable configurations have attributes.
> Could not resolve project :path_provider_linux.
Required by:
project :path_provider
> Unable to find a matching configuration of project :path_provider_linux:
- None of the consumable configurations have attributes.
* 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 12s
Finished with error: Gradle task assembleDebug failed with exit code 1
Go to your Flutter sdk folder.
Go to [.pub-cache\hosted\pub.dartlang.org\ or .pub-cache\hosted\pub.flutter-io.cn\ ]
Remove all path_provider folders.
Pub get
Run your app.
I hope this fix your problem!