"The FIFinderSyncExtensionHost class is implemented in both ..." warning in Xcode since upgrading to macOS High Sierra

Question

I get the following warning in the Xcode console while starting (not compiling) my application from upgrading to High Sierra on my MacBook:

objc [26299]: the FIFinderSyncExtensionHost class is implemented as in /System/Library/PrivateFrameworks/FinderKit.framework/Versions/A/FinderKit (0x7fff88339a70) and /System/Library/PrivateFrameworks/OverOndFlendund / FinderSyncCollaborationFileProviderOverride (0x10cae0cd8). One of the two will be used. Which one is undefined.

I found that someone else got this warning on Github and whoever gets it while working with Java: Java exception with Mac OS High Sierra

For me, the problem behaves exactly as described in the discussion on Github. It does not seem to create any functional problems associated with it. In my case, I would like to get rid of all warnings, although due to the fact that I am having problems with my application, since I upgraded to High Sierra.

I hope someone found a way to deal with this warning.

Answer 1

There is nothing you can do about it. This is Apple's problem, but it is probably harmless.

Note. I am not sure that a different description can be given than indicated in the warning. It just means that the same class is defined in two modules. As for Apple, they are often identical, so it doesn't matter which copy is used.