Integrating react-native into existing App

[NeETsu]

Hi,

we are trying to integrate react-native into our existing android application:
The SDK requirements of our build.gradle are:
minSdkVersion 16
targetSdkVersion 23

We use an Intent to call the initial React index.js:
Intent inte = new Intent(this, ReactNativeStarter.class);
startActivity(inte);
The rest of the code is from the react integrating tutorial.

When we try to call our react component we get the following error:

E/art: dlopen("/data/app/lib/arm/libreactnativejni.so", RTLD_LAZY) failed: dlopen failed: could not load library "libfbjni.so" needed by "libreactnativejni.so"; caused by cannot locate symbol "_ZSt16__get_once_mutexv" referenced by "libfbjni.so"...
E/AndroidRuntime: FATAL EXCEPTION: AsyncTask

Can you help?

[ptomasroos]

Have you inited the SoLoader?
https://github.com/facebook/react-native/blob/a477aec10d29b4651944cb4292daf06dfa953ea3/local-cli/templates/HelloWorld/android/app/src/main/java/com/helloworld/MainApplication.java ?

[NeETsu]

If i inite the SoLoader on false i get exact the same error.
If i inite the SoLoader on true i get:
java.lang.UnsatisfiedLinkError: could find DSO to load: libreactnativejni.so
at com.facebook.soloader.SoLoader.loadLibraryBySoName(SoLoader.java:213)

In error i also have the part:
java.lang.RuntimeException: An error occured while executing doInBackground()

In my opinion using the SoLoader doesn't make sense.

[NeETsu]

Update to the Request.
Full Error Code:

12-16 09:37:52.041 E/AndroidRuntime: FATAL EXCEPTION: AsyncTask
Process: XXXXX, PID: XXXX
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: could not load library "libfbjni.so" needed by "libreactnativejni.so"; caused by cannot locate symbol "_ZSt16__get_once_mutexv" referenced by "libfbjni.so"...
at java.lang.Runtime.load(Runtime.java:331)
at java.lang.System.load(System.java:982)
at com.facebook.soloader.DirectorySoSource.loadLibrary(DirectorySoSource.java:63)
at com.facebook.soloader.SoLoader.loadLibraryBySoName(SoLoader.java:209)
at com.facebook.soloader.SoLoader.loadLibrary(SoLoader.java:178)
at com.facebook.react.bridge.JSCJavaScriptExecutor.(JSCJavaScriptExecutor.java:25)
at com.facebook.react.bridge.JSCJavaScriptExecutor$Factory.create(JSCJavaScriptExecutor.java:20)
at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:183)
at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:169)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 
at java.lang.Thread.run(Thread.java:818) 

[NeETsu]

After long search and trying many different things i found that the error was found in grade by excluding in:

packagingOptions {
        exclude 'lib/armeabi-v7a/libgnustl_shared.so'
    }

to solve the issue we used:

packagingOptions {
        pickFirst 'lib/armeabi-v7a/libgnustl_shared.so'
    }

Now we have a new error:
12-19 10:07:22.157 30271-32680/at.???? E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #4
Process: at.?????, PID:
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.IllegalAccessError: Method 'void android.support.v4.net.ConnectivityManagerCompat.()' is inaccessible to class 'com.facebook.react.modules.netinfo.NetInfoModule'
(declaration of 'com.facebook.react.modules.netinfo.NetInfoModule' appears in /data/data/at.??????/files/instant-run/dex/slice-com.facebook.react-react-native-0.20.1_3762d580ab3ced1fa2f7503493d38e666994b9fa-classes.dex)
at com.facebook.react.modules.netinfo.NetInfoModule.(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$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 
at java.lang.Thread.run(Thread.java:818)