[error record] the flutter reports an error (could not read script 'xxx\flutter\u tools\gradle\app\u plugin\u loader.gradle')

One 、 Error message

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Problem environment description : stay The computer A Created on Flutter application , Uploaded to GitHub in , And then in The computer B Download the source code , The compilation times the following error ;

FAILURE: Build failed with an exception.* Where:Settings file 'D:\002_Project\002_Android_Learn\flutter_photo\android\settings.gradle' line: 11* What went wrong:A problem occurred evaluating settings 'android'.> Could not read script 'D:\001_Programs\004_Flutter\flutter\packages\flutter_tools\gradle\app_plugin_loader.gradle' as it does not exist.* 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.orgBUILD FAILED in 1sRunning Gradle task 'assembleRelease'...                            3.1sGradle task assembleRelease failed with exit code 1Process finished with exit code 1

Two 、 Problem analysis

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Problem core error :

Could not read script 'D:\001_Programs\004_Flutter\flutter\packages\flutter_tools\gradle\app_plugin_loader.gradle' as it does not exist.

Compile time requires D:\001_Programs\004_Flutter\flutter\packages\flutter_tools\gradle\app_plugin_loader.gradle file , I am here D:\001_Programs\004_Flutter\flutter\packages\flutter_tools\gradle\ Not found in the directory app_plugin_loader.gradle file ;

Check the problem android/setting.gradle file ;

include ':app'def localPropertiesFile = new File(rootProject.projectDir, "local.properties")def properties = new Properties()assert localPropertiesFile.exists()localPropertiesFile.withReader("UTF-8") { 
     reader -> properties.load(reader) }def flutterSdkPath = properties.getProperty("flutter.sdk")assert flutterSdkPath != null, "flutter.sdk not set in local.properties"apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"

Other applications that can run on this computer android/setting.gradle file ;

include ':app'def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()def plugins = new Properties()def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')if (pluginsFile.exists()) { 
        pluginsFile.withReader('UTF-8') { 
     reader -> plugins.load(reader) }}plugins.each { 
     name, path ->    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()    include ":$name"    project(":$name").projectDir = pluginDirectory}

The computer B Created on Flutter Engineering can be done in The computer A Up operation ;
The computer A Created on Flutter The project cannot be in The computer B Up operation ;
It is suspected that the environment version , Flutter edition , Dart edition , Android Studio edition , Android SDK edition Caused by inconsistencies ;
It is recommended to use the same configuration for all ;

3、 ... and 、 Solution

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Delete android Catalog , Delete the whole , And then in Terminal Into Source root , perform

flutter create .

command , It will regenerate android Catalog ;

The command line print data is as follows : flutter_photo Is the root directory of the source code ;

D:\002_Project\002_Android_Learn\flutter_photo>flutter create .Recreating project ....  .idea\libraries\Flutter_for_Android.xml (created)  .idea\libraries\KotlinJavaRuntime.xml (created)  .idea\runConfigurations\main_dart.xml (created)  android\app\build.gradle (created)  android\app\src\main\kotlin\com\example\flutter_photo\MainActivity.kt (created)  android\build.gradle (created)  android\flutter_photo_android.iml (created)  android\.gitignore (created)  android\app\src\debug\AndroidManifest.xml (created)  android\app\src\main\AndroidManifest.xml (created)  android\app\src\main\res\drawable\launch_background.xml (created)  android\app\src\main\res\mipmap-hdpi\ic_launcher.png (created)  android\app\src\main\res\mipmap-mdpi\ic_launcher.png (created)  android\app\src\main\res\mipmap-xhdpi\ic_launcher.png (created)  android\app\src\main\res\mipmap-xxhdpi\ic_launcher.png (created)  android\app\src\main\res\mipmap-xxxhdpi\ic_launcher.png (created)  android\app\src\main\res\values\styles.xml (created)  android\app\src\profile\AndroidManifest.xml (created)  android\gradle\wrapper\gradle-wrapper.properties (created)  android\gradle.properties (created)  android\settings.gradle (created)  flutter_photo.iml (created)Wrote 25 files.All done![√] Flutter: is fully installed. (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.1139], locale zh-CN)[√] Android toolchain - develop for Android devices: is fully installed. (Android SDK version 29.0.3)[√] Android Studio: is fully installed. (version 4.0)[!] IntelliJ IDEA Community Edition: is partially installed; more components are available. (version 2019.3)[√] Connected device: is fully installed. (1 available)Run "flutter doctor" for information about installing additional components.In order to run your application, type:  $ cd .  $ flutter runYour application code is in .\lib\main.dart.D:\002_Project\002_Android_Learn\flutter_photo>

Then compile and run , success ;