React-native-gesture-handler: IOS build failed 'Undefined symbols for architecture x86_64'

[sliultron]

Updated React-Navigation to 3.0.8 and followed the instruction to install the react-native-gesture-handler.
after react-native link react-native-gesture-handler
i got error when building with react-native run-ios or building in the xCode.

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_RNForceTouchHandler", referenced from:

      objc-class-ref in libRNGestureHandler.a(RNGestureHandlerManager.o)

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

i am using following packages:

  "react-native": "0.57.3",
    "react-native-gesture-handler": "1.0.12",
    "react-navigation": "3.0.8"

How do i fix this? Please help.
Appreciate :)

[osdnk]

Hi, @sliultron
Try changing 'Build System' to 'Legacy Build System'. I've just made fresh app with react-native init and then linked RNGH and it appears to work fine.
Are you using the newest version of Xcode?

[simonbengtsson]

Downgrading to "react-native-gesture-handler": "1.0.10" works for us.

[sliultron]

@osdnk
finally got project compiled in xcode with a clean build.
I have to run this first.

rm -rf ~/Library/Developer/Xcode/DerivedData/*

Then building is ok.

However, running react-native run-ios still give me that error. Wondering if that is caused by npm cache?

[osdnk]

Hm, I wouldn't guess it's npm cache.

[Evan-Future]

xcode build success, but RN failed

building with react-native run-ios or building in the xCode.

delete RN project directory: ${root}/ios/build

[DLlzw]

react-native-gesture-handler": "1.0.10

I uset it solve

[osdnk]

I strongly advise you to use the newest version since I suppose it's only matter of cache.

[Evan-Future]

I strongly advise you to use the newest version since I suppose it's only matter of cache.

RN build cache and xcode build cache is different directory, so xcode build success, RN build fail

[arthurzeras]

I changed iOS Deployment Target from 8.0 to 9.0 in RNGestureHandler.xcodeproj and solved for me

[timmywil]

Cleaning the project and removing derived data doesn't do it for me. Seems to be more than a cache issue. Downgrading for now until the regression is fixed. I don't think using the Legacy Build System is a viable long-term solution. 1.0.10 seems to be fine. My guess is it has to do with https://github.com/kmagiera/react-native-gesture-handler/commit/8f0b33f5e93fe71b968da3a51c2f6d91a0f91996

[obsidianart]

@osdnk
1.0.15 fails for me too, I cleaned every possible cache "rm -rf $TMPDIR/react-* && rm -rf ~/Library/Developer/Xcode/DerivedData/* && watchman watch-del-all && rm -rf ios/build && rm -rf node_modules/ && npm cache clean --force && yarn install"

[nidzola]

I was getting the same issue, but after next steps I got it resolved:

1. Close the Metro bundler
2. rm -rf ~/Library/Developer/Xcode/DerivedData/*
3. Product -> Clean Build Folder
4. Build from xcode

I've managed to compile and run the build with the latest 1.0.15 version, both on device and emulator.

"react-native": "0.57.7"
"react-native-gesture-handler": "1.0.15"

[sliultron]

@nidzola this works for me as well. thx

[raulghm]

In my case, after cleaning eveything and install dependencies, I changed target to 10.0

Like https://github.com/kmagiera/react-native-gesture-handler/issues/387#issuecomment-449424335

[Biplovkumar]

@osdnk
finally got project compiled in xcode with a clean build.
I have to run this first.

rm -rf ~/Library/Developer/Xcode/DerivedData/*

Then building is ok.

However, running react-native run-ios still give me that error. Wondering if that is caused by npm cache?

thanks