I started getting the following error whenever i use SVN in my server:
svn: warning: cannot set LC_CTYPE locale
svn: warning: environment variable LC_CTYPE is UT
I got the issue when I connect to a remote ssh server (ssh is used by svnserve -> svn update command).
The reason is that the remote server does not have the language pack available which is set in $LANG on the local server.
You can check the installed language packs by 'locale -a'. The $LANG language must be configured on the remote server.
E.g.
Local server: LANG=en_US.UTF-8
Remote server: locale -a -> only de_DE.UTF-8 is available
Resolution: Just install missing language pack on remote server: dpkg-reconfigure locales;
btw: the selected default language does not matter.