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

this command works perfectly, it removed AFPS snapshots

tmutil thinlocalsnapshots / 21474836480 4

Got the reference from this forum

https://forums.developer.apple.com/thread/110533