perl: warning: Setting locale failed.

This warning message indicates that the current locale environment variable is not set correctly or not installed on the system. It can cause issues with Perl scripts that rely on correct locale settings. To resolve this issue, you can try setting the correct locale environment variable using the "export" command in the terminal:

export LC_ALL=en_US.UTF-8

Replace "en_US.UTF-8" with the appropriate locale for your system. If this does not work, you may need to install the necessary locale packages for your system.