Received status code 502 from server: Bad Gateway

第一个问题

报错信息

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:processDebugResources'.
> Could not resolve all task dependencies for configuration ':app:debugRuntimeClasspath'.
   > Could not resolve androidx.room:room-common:[2.2.5].
     Required by:
         project :app > project :flutter_downloader > androidx.work:work-runtime:2.4.0 > androidx.room:room-runtime:2.2.5
      > Failed to list versions for androidx.room:room-common.
         > Unable to load Maven meta-data from https://google.bintray.com/exoplayer/androidx/room/room-common/maven-metadata.xml.
            > Could not get resource 'https://google.bintray.com/exoplayer/androidx/room/room-common/maven-metadata.xml'.
               > Could not GET 'https://google.bintray.com/exoplayer/androidx/room/room-common/maven-metadata.xml'. Received status code 502 from server: Bad Gateway

* 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


FAILURE: Build failed with an exception.

* What went wrong:
Task 'assembleAarRelease' not found in root project 'amap_location_flutter_plugin'.

* Try:
Run gradlew tasks to get a list of available tasks. 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 1s

Exception: The plugin amap_location_flutter_plugin could not be built due to the issue above.

解决办法：修改gradle-wrapper.properties文件，升级distributionUrl的版本后修复

第二个问题

报错信息

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:packageDebug'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
   > java.io.FileNotFoundException: D:\项目路径\build\app\intermediates\signing_config\debug\out\signing-config.json ( ܾ    ʡ )

* 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 9s
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:packageDebug'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
   > java.io.FileNotFoundException: D:\项目路径\build\app\intermediates\signing_config\debug\out\signing-config.json ( ܾ    ʡ )

* 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 19s
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception: Gradle task assembleDebug failed with exit code 1

解决办法：按照提示找到对应文件夹，直接把build文件夹下的文件全部删除，重新编译就可以运行了