突然间APP云端打包就失败了

先来个疑问，为什么云端打包返回失败也算打包次数的呢？

云端打包失败详细信息见以下链接：https://service.dcloud.net.cn/build/errorLog/325e88c0-e9cd-11eb-84d6-4593762c1825

部分错误提示如下：
FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:mergeReleaseResources'.

  Multiple task action failures occurred:
  A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
  Android resource compilation failed
  [PackagePath]/app/res/drawable-hdpi/icon.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-hdpi/icon.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-hdpi/push.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-hdpi/push.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-xhdpi/icon.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-xhdpi/icon.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-xhdpi/push.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-xhdpi/push.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-xxhdpi/icon.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-xxhdpi/icon.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-xxhdpi/push.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-xxhdpi/push.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-xxxhdpi/push.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-xxxhdpi/push.png: AAPT: error: file failed to compile.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource compilation failed
[PackagePath]/app/res/drawable-xxxhdpi/icon.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.

[PackagePath]/app/res/drawable-xxxhdpi/icon.png: AAPT: error: file failed to compile.

• Try:
  Run with --debug option to get more log output. Run with --scan to get full insights.