I am not able to start up XCode. Whenever it starts it just crashes with this error:
Application Specific Information:
ProductBuildVersion: 8E3004b
ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEFrameworks/IDEFrameworks-12175.1/IDEKit/Application/IDEDocumentController.m:2136
Details: There can only be one document registered with a given URL. newDocument:<IDEWorkspaceDocument: 0x7ff6612d6cd0>( 0 -[IDEWorkspaceDocument init] (in IDEKit)
1 -[NSDocument initForURL:withContentsOfURL:ofType:error:] (in AppKit)
2 -[IDEWorkspaceDocument initForURL:withContentsOfURL:ofType:error:] (in IDEKit)
3 -[NSDocumentController makeDocumentForURL:withContentsOfURL:ofType:error:] (in AppKit)
4 __104-[NSDocumentController makeDocumentForURL:withContentsOfURL:alternateContents:ofType:completionHandler:]_block_invoke (in AppKit)
5 -[NSDocumentController makeDocumentForURL:withContentsOfURL:alternateContents:ofType:completionHandler:] (in AppKit)
6 __89-[NSDocumentController reopenDocumentForURL:withContentsOfURL:display:completionHandler:]_block_invoke (in AppKit)
How can I get Xcode start again?
EDIT:
Version of the xcode is 8.3.3
For me, the solution was to remove all custom color pickers in:
~/Library/ColorPickers/
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