Android 在ubuntu 19.10中，颤振构建失败

我有一个在另一台机器上完美构建的颤振应用程序（ubuntu 18.04）。现在我使用的是Ubuntu19.10，当我尝试使用flatter run命令运行这个应用程序时，它会抛出以下错误：

Launching lib/main.dart on Primo EF6 in debug mode...

FAILURE: Build failed with an exception.                                

* What went wrong:                                                      
Cannot create service of type PayloadSerializer using ToolingBuildSessionScopeServices.createPayloadSerializer() as there is a problem with parameter #2 of type PayloadClassLoaderFactory.
> Cannot create service of type PayloadClassLoaderFactory using ToolingBuildSessionScopeServices.createClassLoaderFactory() as there is a problem with parameter #1 of type CachedClasspathTransformer.

* 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 4s                                                      
Running Gradle task 'assembleDebug'...                                  
Running Gradle task 'assembleDebug'... Done                         5.5s
Gradle task assembleDebug failed with exit code 1

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我认为这是格雷德尔的问题。我正在使用颤振v1.12.13+修补程序。6已修复此问题。.gradle目录上存在权限问题，它是只读的。所以更改权限可以解决这个问题