When updating Xcode, it may appear as if you have sufficient disk space, yet you still receive a not enough disk space warning. The most straightforward and effective solution is to free up space by deleting previous Xcode builds and unnecessary simulated devices. This can instantly free up several gigabytes of space. You can perform the following steps in Finder or Terminal to free up space: 1.Delete previous Xcode builds in the /Library/Developer/Xcode/Archives directory, which stores the historical records of your app development builds.