Native component for "UnityView" does not exist

[NathanBWaters]

I ran the following commands: git clone https://github.com/f111fei/react-native-unity-demo cd react-native-unity-demo npm install react-native upgrade react-native link react-native-unity-view npm run watch npm run ios

When building with npm run ios I get the following error:

ld: warning: object file (~/code/rn_unity/ios/build/Build/Products/Debug-iphonesimulator/libRNUnityView.a(RNUnityViewManager.o)) was built for newer iOS version (11.2) than being linked (8.0)
ld: warning: object file (~/code/rn_unity/ios/build/Build/Products/Debug-iphonesimulator/libRNUnityView.a(UnityUtils.o)) was built for newer iOS version (11.2) than being linked (8.0)
ld: warning: object file (~/code/rn_unity/ios/build/Build/Products/Debug-iphonesimulator/libRNUnityView.a(RNUnityView.o)) was built for newer iOS version (11.2) than being linked (8.0)
Undefined symbols for architecture x86_64:
  "_GetAppController", referenced from:
      +[RNUnityViewManager handleAppStateDidChange:] in libRNUnityView.a(RNUnityViewManager.o)
      -[RNUnityViewManager setBridge:] in libRNUnityView.a(RNUnityViewManager.o)
      -[RNUnityView initWithFrame:] in libRNUnityView.a(RNUnityView.o)
  "_UnityInitRuntime", referenced from:
      _InitUnity in libRNUnityView.a(UnityUtils.o)
  "_UnitySendMessage", referenced from:
      _UnityPostMessage in libRNUnityView.a(UnityUtils.o)
  "RegisterFeatures()", referenced from:
      _InitUnity in libRNUnityView.a(UnityUtils.o)
  "RegisterMonoModules()", referenced from:
      _InitUnity in libRNUnityView.a(UnityUtils.o)
  "UnityInitTrampoline()", referenced from:
      _InitUnity in libRNUnityView.a(UnityUtils.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

** BUILD FAILED **

And when the app comes up on the emulator I am seeing:

Invariant Violation: Native component for "UnityView" does not exist

I feel like I must be missing a step. Is it clear what I'm doing wrong?

For more information: npm = 6.0.0 node = v8.11.1 unity = 2017.4

[f111fei]

1. Open unity/Cube/Assets/test.unity

2. Click Build => Export Android or Export IOS

And See

Do not support emulator

https://github.com/f111fei/react-native-unity-demo/issues/3

[NathanBWaters]

Oh yes, I did do 1 and 2 as well, apologies. I'll try it out without an emulator. By the way, thanks for the fast response! Will keep you updated.

[JuanFri]

Hi guys, I have the same problem as NathanBWaters, build on Xcode connected to physical device fail with the same message. Any updates on this error?

Thanks

[f111fei]

@JuanFri Try remove UnityExport folder reference in Xcode and Build => Export IOS again.

[JuanFri]

Xcode 9.3 Unity 2017.2.0f3

1. Download project

2. Import Unity cube project in unity

3. build for iOS

4. import react native project in Xcode

5. build generate this error:

6. Remove Unity export folder references from Xcode project

7. In Unity, export cube project again for IOS

8. No linker errors, build successful

Thanks guys

[kevando]

I ran into the same issue as @JuanFri and his #6 and #7 fixed it for me. Great demo, thanks! I look forward to exploring what we can make with this.

[im-aditya]

I am new to XCode.. so I am not sure how to 'Remove Unity export folder references from Xcode project' ??

Can someone please help me out. Thanks