This is the issues I faced: NSBundle file:///System/Library/PrivateFrameworks/MetalTools.framework/ principal class is nil because all fallbacks have failed How can I fix it because I'm not sure if I dowloaded the application correctly.
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I have an issues with running an application on Xcode
I’d like to clarify the issue here. You wrote:
because I'm not sure if I dowloaded the application correctly.
Normally Xcode is used to run apps that you created, rather than apps that you downloaded. Is this some sample project that you dowloaded? Or something else? Can you share a link to it?
Oh, and what version of Xcode is this? And what version of macOS are you running on it? And what device or simulator are you targeting?
ps You might want to read Quinn’s Top Ten DevForums Tips.
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