linker command failed in react native app, using react-native-firebase

Question

I developed a react native app using react-native-firebase library. I want to set my app icon, so I used this library:npm install -g yo generator-rn-toolbox from here.

When I try to build the project I receive this error:

Undefined symbols for architecture arm64: "_OBJC_CLASS_$_RCTSRWebSocket", referenced from: objc-class-ref in libReact.a(RCTInspectorPackagerConnection.o) "_OBJC_CLASS_$_RCTReconnectingWebSocket", referenced from: objc-class-ref in libReact.a(RCTPackagerConnection.o) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation) How do I fix this ?

Same issue when building an expokitbased app for an ios 11 device. — macrozone
– macrozone, Commented Sep 6, 2017 at 14:34

macrozone · Accepted Answer · 2017-09-07 12:53:16Z

13

I fixed it by manually adding the RCTWebsocket library:

find the RCTWebsocket project: open -R node_modules/react-native/Libraries/WebSocket/RCTWebSocket.xcodeproj
Drag it into xcode under your projects Libraries folder
on your project, select your project target, then goto "Build phases" --> "Link Binaries With Libraries" --> "+"
Search for libRCTWebSocket.a and add it

your project should build now. If libRCTWebSocket.a in step 4 is not there, try to build the project first.

answered Sep 7, 2017 at 12:53

macrozone

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1 Comment

Tmh Over a year ago

I just followed the 3rd and 4th steps, Its got fixed, Thanks @macrozone :)

Sebastien H. · Accepted Answer · 2018-10-30 15:31:44Z

5

I had the similar issue for iOS 12, XCode 10. For those that may help (and avoid losing days like me..), i had to add the libRCTWebSocket.a and the libfishhook.a binaries in the YourProject -> Targets -> YourProject -> Link Binary With Libraries list

answered Oct 30, 2018 at 15:31

Sebastien H.

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Comments

Build3r · Accepted Answer · 2018-01-24 14:35:13Z

4

I was able to build the app by placing libRCTWebSocket.a before libReact.

answered Jan 24, 2018 at 14:35

Build3r

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1 Comment

Hanane Over a year ago

finally! this did the trick, but in the test target (after a full day)

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