生成Gradle包装器文件时出错

Question

我在ubuntu中有一个react native项目，并且我想生成Gradle Wrapper文件，所以我安装了gradle并在android/app中运行了此命令

gradle wrapper --gradle-version 3.4.1

但是当我运行此命令时，出现此错误

FAILURE: Build failed with an exception.

* Where:
Build file '/var/MY_PROJECT/android/app/build.gradle' line: 122

* What went wrong:
A problem occurred evaluating project ':app'.
> Could not get unknown property 'release' for SigningConfig container of type org.gradle.api.internal.FactoryNamedDomainObjectContainer.

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

BUILD FAILED

Answer 1

我发生问题是因为我没有定义就调用了SigningConfig

所以我通过在/var/MY_PROJECT/android/app/build.gradle定义SigningConfig解决了这个问题

...
android {
  ...
  defaultConfig { ... }
  signingConfigs {
    release {
      if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
        storeFile file(MYAPP_RELEASE_STORE_FILE)
        storePassword MYAPP_RELEASE_STORE_PASSWORD
        keyAlias MYAPP_RELEASE_KEY_ALIAS
        keyPassword MYAPP_RELEASE_KEY_PASSWORD
      }
    }
  }
  buildTypes { ... }
}
...

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