I just upgraded to xcode15 and I'm getting "undefined symbols" but it doesn't tell me what they are. How can I troubleshoot that?? I'm doing a pretty basic cocos2dx game with spine. It also has a new 'ignoring duplicate libraries' warning which makes me think its a clue but I can only find one version of the library it says is duplicate?

Wow thank you! This is gold!

Interesting, now that I can see the detail it's referencing a function call instead of a library that its missing. More troubleshooting to do, thank you for the lead ld: Undefined symbols: SplashScreen::createScene(), referenced from: AppDelegate::applicationDidFinishLaunching() in AppDelegate.o clang: error: linker command failed with exit code 1 (use -v to see invocation)

Oh GAWD the error was that it wasn't seeing any of my custom source files at all (and thus any functions that I had defined) because although I added them to the Xcode project I didn't add them to the build target (although build_all was checked by default). XCODE fail Now it works thanks