React Native：尝试在Android上运行时评估项目'：app'时发生问题

Question

我有一个React Native应用，当我尝试在我的android设备上运行它时，出现以下错误：

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/myname/Desktop/myapp/android/app/build.gradle' line: 1

* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [id 'com.android.application']
   > java.nio.file.AccessDeniedException: /Users/myname/.android/build-cache.lock

我正在使用以下版本：

• 反应本机：0.57.3
• Android Studio：3.2.1
• java：“ 1.8.0_191”
• distributionUrl = https：//services.gradle.org/distributions/gradle-4.4-all.zip
• macOS：Mojave 10.14.1

我试图更改Gradle版本，但是没有用。这是我的app/build.gradle：

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/myname/Desktop/myapp/android/app/build.gradle' line: 1

* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [id 'com.android.application']
   > java.nio.file.AccessDeniedException: /Users/myname/.android/build-cache.lock

Answer 1

1.升级你的gradle到：-

buildscript {
dependencies {
    classpath 'com.android.tools.build:gradle:3.2.1'
}

2.删除gradle缓存文件。对于Windows用户，它可以位于C：\ Users \ username.gradle \ caches之类的路径中。对于像sys这样的Unix，它将是〜.gradle \ caches