title: After Expo Eject, run-android error: spawnSync gradlew.bat Enoent
body: <p>I was using expo, but then needed to link a third party package so I ejected from expo with Expo Kit. now when i try <code>react-native run-android</code>, the metro bundler starts but then the following error occurs:</p>
  
  <pre><code>info Building and installing the app on the device (cd android &amp;&amp; gradlew.bat app:installDebug)...
  error 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:
  https://facebook.github.io/react-native/docs/getting-started.html
  error spawnSync gradlew.bat ENOENT
  debug Error: spawnSync gradlew.bat ENOENT
      at Object.spawnSync (internal/child_process.js:981:20)
      at spawnSync (child_process.js:585:24)
      at execFileSync (child_process.js:613:13)
      at runOnAllDevices (C:\Users\Mahmoud's Laptop\RN\ikraawarka\node_modules\@react-native-community\cli\build\commands\runAndroid\runOnAllDevices.js:58:39)
      at buildAndRun (C:\Users\Mahmoud's Laptop\RN\ikraawarka\node_modules\@react-native-community\cli\build\commands\runAndroid\runAndroid.js:142:41)
      at then.result (C:\Users\Mahmoud's Laptop\RN\ikraawarka\node_modules\@react-native-community\cli\build\commands\runAndroid\runAndroid.js:104:12)
      at process._tickCallback (internal/process/next_tick.js:68:7)
  </code></pre>
  
  <p>more info:
  <code>react-native-cli: 2.0.1</code>
  <code>react-native: 0.59.8</code>
  <code>expo: 2.20.2</code></p>
  
  <p>I'm still able to run expo start and it works in the expo client app. Thanks</p>