Stefan Schwarzer <stefan(dot)schwarzer(at)grid(dot)unep(dot)ch> writes:
> FATAL: XX000: failed to initialize lc_messages to ""
> LOCATION: InitializeGUCOptions, guc.c:2666
Typically what this means is that you have an improper setting of LANG
or LC_ALL in your environment ("improper" meaning that it doesn't match
any of the locales that are actually installed on your system). You
can use "locale -a" to find out what's installed.
regards, tom lane