message: Android sourcemap output
diff: @@ -65,6 +65,10 @@ import com.android.build.OutputFile
  * ]
  */
  +project.ext.react = [
  + extraPackagerArgs: ["--sourcemap-output", "$buildDir/intermediates/assets/release/index.android.bundle.map"]
  +]
  +
  apply from: "../../node_modules/react-native/react.gradle"
  /**
  