Upgrading IntelliJ IDEA after Sierra Upgrade: does not have write access to /private/var

Question

Trying to upgrade Intellij IDEA from 2016.2 to 2016.2.5 and I am getting this error:

IDEA does not have write access to /private/var/folders/_q/7md3pcy1

Answer 1

sudo xattr -dr com.apple.quarantine IntelliJ\ IDEA.app/
sudo chmod -R 777 IntelliJ\ IDEA.app/

these commands work recursively and fix the trouble