Overview
This article describes how to deal with Perl's locale warning after SSH login.
Example error message
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "ja_JP.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "ja_JP.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "ja_JP.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "ja_JP.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").Occurrence condition
We have confirmed that this phenomenon occurs only in the following cases.
- The server name of the SSH connection destination starts with "ty".
For how to check the server name, please refer to How to check the host server. - The SSH connection source client is using the Mac terminal.
- This phenomenon does not occur with SSH connections from Windows or Linux.
Workaround
Please follow the steps below to change the settings on the terminal side.
STEP 1: Open terminal settings.
Open the profile from the terminal settings screen and open the "Advanced" tab.
STEP 2: Change settings.
Uncheck "Set locale environment variables on startup".
STEP 3: Exit the terminal.
Exit Terminal.
*Please "Exit" instead of just minimizing or closing the window.
STEP 4: Restart the terminal.
Restart the terminal, make an SSH connection, and check if the display has disappeared.