title: E/unknown:React: Exception in native call
body: <p>I run android app via emulator, but got some error like below.</p>
  
  <p>Don't know how to fix it.</p>
  
  <p>Is there someone who know the solution?</p>
  
  <p>please help.</p>
  
  <p>thanks.</p>
  
  <pre><code>E/unknown:React: Exception in native call
                                                                              java.lang.RuntimeException: Unable to load script from assets 'index.android.bundle'. Make sure your bundle is packaged correctly or you're running a packager server.
                                                                                  at com.facebook.react.cxxbridge.CatalystInstanceImpl.jniLoadScriptFromAssets(Native Method)
                                                                                  at com.facebook.react.cxxbridge.CatalystInstanceImpl.loadScriptFromAssets(CatalystInstanceImpl.java:198)
                                                                                  at com.facebook.react.cxxbridge.JSBundleLoader$1.loadScript(JSBundleLoader.java:33)
                                                                                  at com.facebook.react.cxxbridge.CatalystInstanceImpl.runJSBundle(CatalystInstanceImpl.java:216)
                                                                                  at com.facebook.react.ReactInstanceManager.createReactContext(ReactInstanceManager.java:994)
                                                                                  at com.facebook.react.ReactInstanceManager.access$600(ReactInstanceManager.java:109)
                                                                                  at com.facebook.react.ReactInstanceManager$4.run(ReactInstanceManager.java:746)
                                                                                  at java.lang.Thread.run(Thread.java:818)
  </code></pre>