Xcode on Mac App Store can't install , show disk space not enough

Question

I\'m using the Mac OS to install the XCode10.1.

I have 18.43GB free disk space in the mac,

but when I click the install button on the Xcode from the app store,<

Answer 1

I ran into same issue trying to install XCode 11.beta after installing macOS Catalina. What i did:

1. delete ~/Library/Caches/storedownloadd
2. delete ~/Library/Caches/com.apple.appstore
3. uninstall previous version of XCode (10.3) -> wait till all the files are deleted, can check in Disk Utility
4. fresh restart -> without opening the apps before restart
5. install new XCode version with Archive Utility.