发布打包报错

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':fair'.
> Build Type 'debug' contains custom BuildConfig fields, but the feature is disabled.
  To enable the feature, add the following to your module-level build.gradle:
  `android.buildFeatures.buildConfig true`

在自己工程的buildGradle里面添加了 
 buildFeatures {
        buildConfig true
    }
也还是一样