ionic 打包 报错Execution failed for task ':processDebugResources'. > com.android.ide.common.process.ProcessException: Failed to execute aapt

在platform --> android目录下找到build.gradle文件，打开并在def promptForReleaseKeyPassword() {...}函数前加入以下内容：

　　

完整报错

BUILD FAILED

Total time: 19.142 secs
ERROR: In <declare-styleable> FontFamilyFont, unable to find attribute android:ttcIndex

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':processDebugResources'.
> com.android.ide.common.process.ProcessException: Failed to execute aapt

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
ERROR: In <declare-styleable> FontFamilyFont, unable to find attribute android:fontVariationSettings
ERROR: In <declare-styleable> FontFamilyFont, unable to find attribute android:ttcIndex

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':processDebugResources'.
> com.android.ide.common.process.ProcessException: Failed to execute aapt

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

[ERROR] An error occurred while running cordova build android (exit code 1).

　　解决办法：

执行命令ionic cordova platform add android

　　在platform --> android目录下找到build.gradle文件，打开并在def promptForReleaseKeyPassword() {...}前加入以下内容：

configurations.all {
  resolutionStrategy {
      force 'com.android.support:support-v4:27.1.0'
  }
}

　　原因：

compile "com.android.support:support-v4:+" 带+号是指要用最新版本。

force 'com.android.support:support-v4:27.1.0'  添加force强制指定annotations