title: react native android error
body: <p>I developed an application in react native</p>
  
  <p>It run on ios perfectly
  but in android it has below error:</p>
  
  <blockquote>
    <p>E/unknown:React: Exception in native call</p>
    
    <p>java.lang.NullPointerException: Attempt to invoke interface method
    'java.util.Iterator java.util.List.iterator()' on a null object
    reference
                                                                                 at
    com.facebook.react.ReactInstanceManager.processPackage(ReactInstanceManager.java:952)
                                                                                 at
    com.facebook.react.ReactInstanceManager.createReactContext(ReactInstanceManager.java:891)
                                                                                 at
    com.facebook.react.ReactInstanceManager.access$600(ReactInstanceManager.java:104)
                                                                                 at
    com.facebook.react.ReactInstanceManager$ReactContextInitAsyncTask.doInBackground(ReactInstanceManager.java:218)
                                                                                 at
    com.facebook.react.ReactInstanceManager$ReactContextInitAsyncTask.doInBackground(ReactInstanceManager.java:197)
                                                                                 at android.os.AsyncTask$2.call(AsyncTask.java:304)
                                                                                 at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                                                                                 at
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
                                                                                 at
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
                                                                                 at java.lang.Thread.run(Thread.java:761)</p>
  </blockquote>
  
  <p>how I can fix this problem? why this problem occurred?</p>