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Some details about my System and Xcode: macOS 10.15.6 Xcode Version 12.0 (12A7209) Intel i5 4 GB RAM 128 GB Solid State Drive I tried opening a .xcworkspace file from a Xcode project and until now I was not able to open that file. Same goes for the .xcodeproj file, cannot open it. Xcode crashes every time I try to open up one of these files.. I tried setting the Xcode settings to default via Terminal and I also tried to delete the xcuserdata folder in the package contents of both project files (to be clear: .xcworkspace and .xcodeproj). I do still have the same issue here, but only with this Xcode project. I can create other new projects and open them without any problem, it's just this individual project which I can not open with Xcode 12. Xcode crash report: Process:							 Xcode [7785] Path:									/Applications/Xcode.app/Contents/MacOS/Xcode Identifier:						Xcode Version:							 12.0 (17219) Build Info:						IDEFrameworks-17219000000000000~2 (12A7209) App Item ID:					 497799835 App External ID:			 837639917 Code Type:						 X86-64 (Native) Parent Process:				??? [1] Responsible:					 Xcode [7785] User ID:							 501 Date/Time:						 2020-09-20 04:26:41.231 +0200 OS Version:						Mac OS X 10.15.6 (19G2021) Report Version:				12 Anonymous UUID:				17518435-5A4E-1643-0D44-BB1B8A8A9BE5 Time Awake Since Boot: 32000 seconds System Integrity Protection: enabled Crashed Thread:				0	Dispatch queue: com.apple.main-thread Exception Type:				EXC_CRASH (SIGABRT) Exception Codes:			 0x0000000000000000, 0x0000000000000000 Exception Note:				EXC_CORPSE_NOTIFY Application Specific Information: ProductBuildVersion: 12A7209 UNCAUGHT EXCEPTION (NSInvalidArgumentException): -[__NSCFString replaceCharactersInRange:withString:]: nil argument UserInfo: (null) Open FDs: 40/7168 Hints: I need to compile the app and publish it in the next couple of hours, so that it is available on the App Store on Wednesday, September 23rd. It would be so amazing if anyone could provide a solution that is working for me. Thanks, Alex