SVN cannot set LC_CTYPE locale

LC_ALL and LANG settings did not work for me but LC_CTYPE did.

LC_CTYPE=en_US.UTF-8

If you want to fix this, set the “LC_ALL” variable manually.

To make it permanent just edit the file “/etc/environment” and add the line:

LC_ALL=C

Save the file and exit the editor. In order for it to apply you have to logout of the current shell session. The next time you log in, the issue with SVN will be gone.

Check the output of

locale -a

If the locale that SVN is complaining about isn't installed, then you can install it.

You might need to do for Debian or similar systems:

sudo dpkg-reconfigure locales

If you want to configure locales manually:

sudo vim /etc/locale.gen # and add "en_US.UTF-8 UTF-8"
sudo locale-gen

Or if your locale-gen supports an argument (NOT for Debian):

sudo locale-gen en_GB.UTF-8
sudo locale-gen en_US.UTF-8

Alternatively as Ankit writes in his answer:

export LC_ALL=C

may work (in your current session, or in your .profile).

Although setting LC_CTYPE to an empty value worked for me, the underlying reason was that the app Terminal on my Mac was setting the locales on startup, even when I SSH to another system.

This can be fixed in Terminal > Preferences:

• Select "Profiles" tab and select “Advanced” from sub-tabs
• Uncheck "Set locale environment variables on startup"