Xcode – How to fix ‘NSUnknownKeyException’, reason: … this class is not key value coding-compliant for the key X” error?

I’m trying to link a UILabel with an IBOutlet created in my class. My application is crashing with the following error. What does this mean? How can I fix it? *** Terminating app due to uncaught exception ‘NSUnknownKeyException’, reason: ‘[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.’ 7 75

Find (and kill) process locking port 3000 on Mac [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 3 months ago. Improve this question How do I find (and kill) processes that listen to/use my TCP ports? I’m on macOS. Sometimes, after a … Read more

Git is not working after macOS Update (xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools)

I updated to macOS Mojave (this happens on Catalina update too, and seems to potentially occur on every major update thereafter) This morning I navigated to my work’s codebase in the Command Line on my MacBook pro, typed in “git status” in the repository and received the error: xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), … Read more