flutter run 报错：app:mergeDebugJav

flutter在iOS平台Run的好好的，在安卓上Run出错，报错信息如下：

FAILURE: Build completed with 2 failures.                             

1: Task failed with an exception.                                     

-----------                                                           

* What went wrong:                                                     

Execution failed for task ':app:mergeDebugJavaResource'.               

> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade

  > File 'com.android.builder.files.ZipCentralDirectory@6d707ed5' was deleted, but previous version not found in cache

* 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.                                     

-----------                                                           

* What went wrong:                                                     

Execution failed for task ':app:mergeDebugNativeLibs'.                 

> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade

  > File 'com.android.builder.files.ZipCentralDirectory@10d2360b' was deleted, but previous version not found in cache

* 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                                                     

Running Gradle task 'assembleDebug'...                                 

Running Gradle task 'assembleDebug'... Done                        10.7s

Exception: Gradle task assembleDebug failed with exit code 1

解决：项目/android/build.gradle 中第 9 行

classpath'com.android.tools.build:gradle:3.5.0'

将3.5.0改为最新的3.6.1

修改后保存，Run起来，又报错

FAILURE: Build failed with an exception. 

* Where:                                                               

Build file '/Users/**/Documents/Flutter学习Demo/NewMyYaoPaiProject/MyYaoPaiProject/android/app/build.gradle' line: 24

* What went wrong:                                                     

A problem occurred evaluating project ':app'.                         

> Failed to apply plugin [id 'com.android.internal.version-check']     

  > Minimum supported Gradle version is 5.6.4. Current version is 5.6.2. If using the gradle wrapper, try editing the distributionUrl in /Users/**/Documents/Flutter/***/***/android/gradle/wrapper/gradle-wrapper.properties to gradle-5.6.4-all.zip

* 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 1m 4s   

这是说：gradle-wrapper.properties中的 distributionUrl 需要将版本号5.6.2改为5.6.4，即在项目\android\gradle\wrapper\gradle-wrapper.properties 文件第6行修改如下：

distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip

再次Run即可成功～