When I tried to use Xcode to compile an app for my iPhone, it also compiled a macOS version, but they don't work. I tried to delete them from the Applications folder, but they're not there. According to the Xcode logs, I found that they're located in /private/var/folders/ and there are some deprecated projects. How should I delete them?

help! How to turn on developer options on iPhone 6 (iOS 12.5.7 Release)