Nativescript doesn't recognize Xcode (High Sierra)

Run the following command:

sudo xcode-select --reset

I found this answer here:

http://overengineer.net/fixing-nativescript-s-xcode-is-not-installed-or-is-not-configured-properly-on-macos

I had this problem today, but running the recommended command didn't help. I found that running the command

$ tns doctor

walked me through a series of prompts and corrected the issue. I did have to restart my terminal after the program completed in order for it to take effect.

Open Xcode than go to Preferences -> Locations -> Command Line Tools after that it'll automatically take a path for the same. The system may ask for sudo password.