The warning message you're seeing, "/bin/bash: warning: set locale: LC_ALL: cannot change locale (en_US.UTF-8)", indicates an issue related to the system's locale settings.

Here's how you can address this:

Set Locale Environment Variables

1. Open the /etc/environment file for editing:

   bash

• sudo nano /etc/environment

• Add the following lines:

  makefile
• LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8

  Make sure to replace en_US.UTF-8 it with the appropriate locale if needed.

• Save the file and exit the editor.

• Update the environment variables:

  bash

4. source /etc/environment

Reconfigure Locales

1. Run the following command to reconfigure the locales:

   bash

1. sudo dpkg-reconfigure locales

   This will open a dialog where you can select the desired locales. Make sure to select en_US.UTF-8 or your preferred locale.

2. After selecting the desired locale, press Enter, and then the system will generate the selected locales.

Manually Update Locale Settings

1. Open the /etc/default/locale file for editing:

   bash

• sudo nano /etc/default/locale

• Make sure the file contains the following lines:

  makefile
• LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8

  Again, replace en_US.UTF-8 it with your preferred locale if necessary.

• Save the file and exit the editor.

• Update the locale settings:

  bash

4. source /etc/default/locale

Set Locale in Bash Profile

1. Open the ~/.bashrc file for editing (if the issue is specific to a user):

   bash

• nano ~/.bashrc

• Add the following line at the end of the file:

  bash