title: Can't start React Native
body: <p>I'm on ubuntu 16.04. Trying to get started with React native, the official basic tutorial. I've initialized a sample project with react native cli but when I do <code>react-native run-android</code> it fails. if i try to use a real device I get <code>Could not get batched bridge</code>. I've googled for this issue but none of suggestions helped me. When I try to run it on Genymotion I get</p>
  
  <pre><code>ADB server didn't ACK
  * failed to start daemon *
  error: 
  Starting the app (/home/yxfxmx/Android/Sdk/platform-tools/adb shell am    start -n com.test/.MainActivity...
  error: no devices/emulators found
  </code></pre>
  
  <p>I've set Genymotion to use system SDK instead of its built-in one. Also, when I try to <code>adb start-server</code> while having Genymotion virtual device running I get</p>
  
  <pre><code>adb server is out of date.  killing...
  cannot bind 'tcp:5037'
  ADB server didn't ACK
  </code></pre>
  
  <p>If the virtual device is shut down I'm able to <code>adb start-server</code> or <code>adb-devices</code> ok. If my real phone is connected it can see it in <code>adb devices</code>. But if I have a virtual device running it fails. I also have Android studio installed, perhaps it may conflict?
  If you have any suggestions plz post it.</p>