Class FIFinderSyncExtensionHost implemented twice

Originator:macmade
Number:rdar://32839314 Date Originated:June 18 2017, 4:38 PM
Status:Duplicate (31181115) Resolved:
Product:macOS + SDK Product Version:
Classification:Other bug Reproducible:Sometimes
 
Area:

Finder

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Summary:

On some project, I get this warning in the Xcode console when presenting an open panel:

objc[80401]: Class FIFinderSyncExtensionHost is implemented in both /System/Library/PrivateFrameworks/FinderKit.framework/FinderKit (0x10d099200) and /System/Library/PrivateFrameworks/FileProvider.framework/OverrideBundles/FinderSyncCollaborationFileProviderOverride.bundle/Contents/MacOS/FinderSyncCollaborationFileProviderOverride (0x115309c00). One of the two will be used. Which one is undefined.

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Steps to Reproduce:

I'm not really sure what triggers this warning, as it does not show when I try to reproduce the issue on an empty project.

Anyway, here's the open-panel code:

    NSOpenPanel * panel;
    
    panel = [ NSOpenPanel openPanel ];
    
    panel.canChooseFiles = NO;
    panel.canChooseDirectories = YES;
    panel.canCreateDirectories = YES;
    panel.canSelectHiddenExtension = YES;
    panel.showsHiddenFiles = NO;
    panel.treatsFilePackagesAsDirectories = NO;
    panel.allowsMultipleSelection = NO;
    
    [ panel beginSheetModalForWindow: self.view.window completionHandler: ^( NSInteger res )
        {
            ( void )res;
        }
    ];

Warning is shown after the call to beginSheetModalForWindow:completionHandler:

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Expected Results:

Presenting an open-panel shouldn't trigger any warning.

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Observed Results:

Warning about FIFinderSyncExtensionHost class is sometimes shown.

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Version:

Xcode Version 9.0 beta (9M136h)
macOS Version 10.13 Beta (17A264c)

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