Integrating with an Android existing app crashes the application

[SandroMachado]

Issue Description

Integrating React Native in an existing Android application does not work. Every time I try to run the Activity with the ReactRootView I get the following crash:

 Theme: themes:{default=overlay:system, iconPack:system, fontPkg:system, com.android.systemui=overlay:system, com.android.systemui.navbar=overlay:system}
 java.lang.RuntimeException: An error occurred while executing doInBackground()
     at android.os.AsyncTask$3.done(AsyncTask.java:309)
     at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
     at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
     at java.util.concurrent.FutureTask.run(FutureTask.java:242)
     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
     at java.lang.Thread.run(Thread.java:818)
  Caused by: java.lang.IllegalAccessError: Method 'void android.support.v4.net.ConnectivityManagerCompat.<init>()' is inaccessible to class 'com.facebook.react.modules.netinfo.NetInfoModule' (declaration of 'com.facebook.react.modules.netinfo.NetInfoModule' appears in /data/app/*****.debug-2/base.apk)
     at com.facebook.react.modules.netinfo.NetInfoModule.<init>(NetInfoModule.java:55)
     at com.facebook.react.shell.MainReactPackage.createNativeModules(MainReactPackage.java:67)
     at com.facebook.react.ReactInstanceManagerImpl.processPackage(ReactInstanceManagerImpl.java:793)
     at com.facebook.react.ReactInstanceManagerImpl.createReactContext(ReactInstanceManagerImpl.java:730)
     at com.facebook.react.ReactInstanceManagerImpl.access$600(ReactInstanceManagerImpl.java:91)
     at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:184)
     at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:169)
     at android.os.AsyncTask$2.call(AsyncTask.java:295)
     at java.util.concurrent.FutureTask.run(FutureTask.java:237)
     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

Steps to Reproduce / Code Snippets

1. Following the integration tutorial with an existing Android application.
2. Run the app and open the Activity with the ReactRootView.

Expected Results

Appear the activity with the react native component.

Additional Information

• React Native version: 0.35.0
• Platform(s) (iOS, Android, or both?): Android
• Operating System (macOS, Linux, or Windows?): macOS

[SandroMachado]

The problem was that React Native was downloaded from node_modules, not maven central or otherwhere. So I was using an older version of React Native.

[StefanoCremona]

@SandroMachado hello.
What have you changed in your configuration for solving the issue?
Thank you

[SandroMachado]

@StefanoCremona looks like you find the solution here.

[StefanoCremona]

@SandroMachado Yes, thank you anyway. It seems there are hundreds of developers with the same problem. May be we could suggest an improvement to the original documentation.

[alexblack]

I'm hitting this with React Native 0.41.2, any suggestions? Its not clear to me what the fix is here:

#6152 (comment)

I currently have:

maven { url "$rootDir/../node_modules/react-native/android" } // All of React Native (JS, Android binaries) is installed from npm

is that not correct?

[grtickle]

@alexblack Did you find a solution to this?