I can't execute any program after updating the sublime text

[sha]

Sharons-MacBook-Pro:~ sharon$ gcc /Users/sharon/Desktop/project.c
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

i get the above error

[mwb1100]

According to this post:

http://apple.stackexchange.com/questions/209624/how-to-fix-homebrew-error-invalid-active-developer-path-after-upgrade-to-os-x

You can fix this error by reinstalling Xcode.