Class VCWeakObjectHolder is implemented in both

Developer Tools & Services Xcode
Parystec OP
Created Nov ’17
Replies 5
Boosts 0
Views 11k
Participants 6

Hi All,


Updated my project to Swift 3,2 and all builds ok, when i run it on sim / device I get :-


Class VCWeakObjectHolder is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/Frameworks/ViceroyTrace.framework/ViceroyTrace (0x120a88490) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/AVConference (0x120912120). One of the two will be used. Which one is undefined.


and the app stops in AppDelegate.


Any help here would be much appreciated 😟

Replies  5
Boosts  0
Views  11k
Participants  6
newwbee OP
Apr ’18

The error suggests that the same symbol / class is defined twice.


- Check the frameworks linked to see if there are any duplicates. If so remove the duplicate

- Clean build folder (Command + Shift + K)

- If simulator, then reset the simulator and try

- If device, restart the device and try


I faced the same issue twice, once it was duplicate frameworks and the other time resetting simulator helped.

0
div2004 OP
Apr ’18

Did you ever manage to fix this issue? I'm facing the same problem, but @newwbee's solution (which I note is also on Stack Overflow) didn't help me at all.


If you managed to get around the problem, could you please explain how?


Thanks.

0
perlguy67 OP
Apr ’18

- Clean build folder should be (Command + Option + Shift + K)


I did the following to resolve this issue:


  1. reset the simulator
  2. cleaned the project (Command + Shift + K)
  3. cleaned the build folder (Command + Option + Shift + K)
  4. re-ran my code, the warning/error was gone.
0
Claude31 OP
Apr ’18

This is a very usual message by now. Just ignore it.

0
provmusic OP
May ’18

Worked for me 🙌

0
Class VCWeakObjectHolder is implemented in both
First post date Last post date
 
 
Q