Realm-js: Native module RealmReactModule tried to override RealmReactModule for module name Realm

[zhqchen]

I use react-native 0.26.3 and realm 0.13.2, but when I finish linking my project and run, I got this problem blow....why???

java.lang.IllegalStateException: Native module RealmReactModule tried to override RealmReactModule for module name Realm. If this was your intention, return true from RealmReactModule#canOverrideExistingModule()
at com.facebook.react.bridge.NativeModuleRegistry$Builder.add(NativeModuleRegistry.java:213)
at com.facebook.react.ReactInstanceManagerImpl.processPackage(ReactInstanceManagerImpl.java:898)
at com.facebook.react.ReactInstanceManagerImpl.createReactContext(ReactInstanceManagerImpl.java:825)
at com.facebook.react.ReactInstanceManagerImpl.access$700(ReactInstanceManagerImpl.java:102)
at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:198)
at com.facebook.react.ReactInstanceManagerImpl$ReactContextInitAsyncTask.doInBackground(ReactInstanceManagerImpl.java:181)
at android.os.AsyncTask$2.call(AsyncTask.java:292)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$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)

[appden]

It looks like the RealmReactPackage was somehow included twice. Can you check that it only appears once in the getPackages() method inside MainActivity.java?

[zhqchen]

Oh...yes, you are right. RealmReactPackage was included twice, It's my
fault. Thank you very much.

2016-06-06 17:15 GMT+08:00 Scott Kyle [email protected]:

It looks like the RealmReactPackage was somehow included twice. Can you
check that it only appears once in the getPackages() method inside
MainActivity.java?

—
You are receiving this because you authored the thread.
Reply to this email directly, view it on GitHub
https://github.com/realm/realm-js/issues/471#issuecomment-223907337, or mute
the thread
https://github.com/notifications/unsubscribe/AFZF89_G8ykvb_hSoWbmS6TKS5MoQn9Rks5qI-U-gaJpZM4ItYAn
.

[mattisx]

I'm getting this upgrading my project to RN 0.39 (npm install [email protected] --save && react-native upgrade) and not doing any other changes.

It had added duplicates of my packages in MainApplication.java.

[lalosh]

Thank you @appden and the reason for the duplication was because I executed react-native link in the process of adding a new font..I deleted the duplicated lines and it works fine..thanks

[jacksonkr]

I ran into a similar problem and ran react-native unlink [module-name] which fixed my issue.