may be using a version of Gradle that does not contain the method.

转载自：http://www.bubuko.com/infodetail-650124.html

The project ‘HackerTool’ may be using a version of Gradle that does not contain the method.Open Gradle wrapper
file
The build file may be missing a Gradle plugin. Apply Gradle plugin
解决：
打开build.Gradle(Module:app)，修改如下：
修改前：

buildTypes {
release {
runProguard  false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}

修改后：

buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}