无法执行颤振应用程序，当我运行它

Question

当我运行颤动应用程序时，Android模拟器中没有任何反应，vscode控制台显示此错误：

Launching lib\main.dart on Samsung Galaxy S8 in debug mode...
Running Gradle task 'assembleDebug'...
Exception in thread "main" java.lang.RuntimeException: Timeout of 120000 reached waiting for exclusive access to file: C:\Users\13\.gradle\wrapper\dists\gradle-5.6.2-all\9st6wgf78h16so49nn74lgtbb\gradle-5.6.2-all.zip
    at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:61)
    at org.gradle.wrapper.Install.createDist(Install.java:48)
    at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
    at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Running Gradle task 'assembleDebug'...
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception in thread "main" java.lang.RuntimeException: Timeout of 120000 reached waiting for exclusive access to file: C:\Users\13\.gradle\wrapper\dists\gradle-5.6.2-all\9st6wgf78h16so49nn74lgtbb\gradle-5.6.2-all.zip
    at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:61)
    at org.gradle.wrapper.Install.createDist(Install.java:48)
    at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
    at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception: Gradle task assembleDebug failed with exit code 1

颤振医生:

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 1.22.5, on Microsoft Windows [Version 10.0.19042.685], locale en-US)

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[!] Android Studio (version 4.1.0)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] VS Code (version 1.52.1)
[!] Connected device
    ! No devices available

! Doctor found issues in 2 categories.

顺便说一下，dart和flutter插件都已安装。

Answer 1

也许是缓存问题。尝试以下步骤。

1. 打开您的项目。
2. 打开终端。
3. 执行颤振清理命令。
4. 执行颤振运行命令。