You can’t open the application “iTunes” because it is being updated After applying the 10.13.3 update, I am not able to open itune and xcode.



In lanuchpad I don't see any update is being applied to these applications



How can I fix this? I cannot afford to reboot again and again (There are too many applications I have to restart for work)

I have tried to download the itune installer from apple. The installer just showed an error message than quit.
I have the same error message with XCode. 

I deleted Xcode from Finder. Emptied the trash. Then installed XCode again from the App Store. (I cannot remove iTunes because it is disallowed by macOS)

Now both XCode and iTunes work again.