Realm-js: Realm framework gets stripped when distributing app packages

[dorongutman]

I'm getting the following crash when opening the app after installing it on device via Fabric Beta:

Thread : Fatal Exception: RCTFatalException: Unhandled JS Exception: Missing Realm constructor - please ensure RealmReact framework is included!
0  CoreFoundation                 0x18275d900 __exceptionPreprocess
1  libobjc.A.dylib                0x181dcbf80 objc_exception_throw
2  CoreFoundation                 0x18275d848 -[NSException initWithCoder:]
3  MyApp                          0x10003e638 RCTFatal (RCTAssert.m:133)
4  MyApp                          0x10005a96c -[RCTExceptionsManager reportFatalException:stack:exceptionId:] (RCTExceptionsManager.m:64)
5  CoreFoundation                 0x182763430 __invoking___
6  CoreFoundation                 0x182660eb4 -[NSInvocation invoke]
7  CoreFoundation                 0x1826657e0 -[NSInvocation invokeWithTarget:]
8  MyApp                          0x100073fdc -[RCTModuleMethod invokeWithBridge:module:arguments:] (RCTModuleMethod.m:472)
9  MyApp                          0x1000474f8 -[RCTBatchedBridge _handleRequestNumber:moduleID:methodID:params:] (RCTBatchedBridge.m:921)
10 MyApp                          0x100046ee8 __33-[RCTBatchedBridge handleBuffer:]_block_invoke387 (RCTBatchedBridge.m:851)
11 libdispatch.dylib              0x1821b1630 _dispatch_call_block_and_release
12 libdispatch.dylib              0x1821b15f0 _dispatch_client_callout
13 libdispatch.dylib              0x1821bd634 _dispatch_queue_drain
14 libdispatch.dylib              0x1821b50f4 _dispatch_queue_invoke
15 libdispatch.dylib              0x1821b15f0 _dispatch_client_callout
16 libdispatch.dylib              0x1821bfa88 _dispatch_root_queue_drain
17 libdispatch.dylib              0x1821bf224 _dispatch_worker_thread3
18 libsystem_pthread.dylib        0x1823c5470 _pthread_wqthread
19 libsystem_pthread.dylib        0x1823c5020 start_wqthread

Here's some extra information about my setup:

• Tested using React Native 0.18.1 and 0.19.0
• Using CocoaPods for installing react native, fabric+crashlytics
• Running on simulator with Release in the schema works fine.
• Running on device directly from Xcode with Release in the schema works fine.

[dorongutman]

This happens with TestFlight as well, and not only in Fabric

[dorongutman]

Also note that I've removed any mention to realm other then require('realm')

[alazier]

Is the RealmReact.framework included in the Embedded Binaries section under the General tab in the app's setting? That's the only reason I could think that this would happen but I would imagine this would cause running on the device from XCode to fail too. Trying to see if I can reproduce the issue.

[alazier]

Ok. I can reproduce the issue using Fabric. Now just need to figure out what the problem is...

[alazier]

Think I figured it out. You need to turn of stripping the project settings:

"Strip Debug Symbols During Copy" -> NO
"Strip Linked Product" -> NO

[dorongutman]

@alazier on the app's target ?

[alazier]

Yes. Pretty sure "Strip Linked Product" is what is causing the problem but I changed both when I tried it out.

[dorongutman]

WORKS!!

[alazier]

We either need to update the docs for other users, or change something to avoid this altogether.

[timanglade]

@appden The workaround should be added to the docs before release

[timanglade]

Closing this unless we hear about other reports — the workaround documented in https://github.com/realm/realm-js/issues/219#issuecomment-178066140 should be enough!

[dcflow]

Hi,

Another scenario when this is happening on Android: The app is turned off and it receives a push notification. import Realm is called and this error appears:

The same issue happened with CodePush but it was fixed by calling the constructor only when a specific method was called (ex. CodePush.sync()).

Thank You!

[esutton]

Adding the two strip NO options no longer work under Xcode 7.3 and iOS 9.3.

• "Strip Debug Symbols During Copy" -> NO
• "Strip Linked Product" -> NO

[appden]

@dorongutman You'll no longer need to disable stripping symbols after updating to 0.11.0. Check out the 0.11.0 release notes for how to update your project.

[eladgel]

Still happens

Fatal Exception: RCTFatalException: Unhandled JS Exception: Missing Realm constructor. Did you run "react-native link realm"? Please see https://realm.io/docs/react-native/latest/#missing-realm-constructor for troubleshooting