Terminal doesn't see variables in .profile file

Hi,

I am trying to install a Nativescript plugin & build the app, but it gives that warning:

WARNING: CocoaPods requires your terminal to be using UTF-8 encoding.
Consider adding the following to ~/.profile:

export LANG=en_US.UTF-8

and it fails. If I run the same command (tns run ios --emulator) it works fine. I already added the export line to the .profile and .bash_profile files. (Also restarted the terminal/app)

I also added it as environment variable in Tools/Terminal settings of PhpStorm.

Why do get this error and how can I fix it?

Best Regards.