title: react-native :app:installDebug FAILED
body: <p>Install APK debug to my device failed.</p>
  
  <pre><code>jianglinghuadeMacBook-Pro:hello jianglinghua$ react-native run-android
  JS server already running.
  Building and installing the app on the device (cd android &amp;&amp; ./gradlew installDebug...
  WARNING [Project: :app] Current NDK support is deprecated.  Alternative will be provided in the future.
  :app:preBuild UP-TO-DATE
  ......
  :app:assembleDebug UP-TO-DATE
  :app:installDebug
  Installing APK 'app-debug.apk' on 'MI NOTE LTE - 6.0.1'
  Unable to install /Users/jianglinghua/Desktop/hello/android/app/build/outputs/apk/app-debug.apk
  com.android.ddmlib.InstallException: Failed to establish session
      at com.android.ddmlib.Device.installPackages(Device.java:894)
      ........
      at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
  :app:installDebug FAILED
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':app:installDebug'.
  &gt; com.android.builder.testing.api.DeviceException: com.android.ddmlib.InstallException: Failed to establish session
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
  
  BUILD FAILED
  
  Total time: 13.945 secs
  </code></pre>
  
  <p>Could not install the app on the device, read the error above for details.
      Make sure you have an Android emulator running or a device connected and have
      set up your Android development environment:
      <a href="https://facebook.github.io/react-native/docs/android-setup.html">https://facebook.github.io/react-native/docs/android-setup.html</a></p>
  
  <p>I look at my devices</p>
  
  <pre><code>jianglinghuadeMacBook-Pro:hello jianglinghua$ adb devices
  List of devices attached
  98333978    device
  </code></pre>