Invalid key: Shift

[grousk]

I am defining an binding like this: bind[flip_layout] = MOD+Shift+backslash and in bar there is an exception: line 139: bind: invalid key: Shift

[LordReg]

It is likely a locale/character encoding issue.. If you are seeing invalid key: Shift that means strncasecmp() is failing to match the Shift text from your configuration file. Ensure your config file and spectrwm's locale is UTF-8 encoded.

[grousk]

Its UTF-8 encoded. Maybe it caused by filename? My filename is spectrwm_tr.conf should it be like spectrwm_us.conf

[LordReg]

If that is a keyboard mapping file, the filename doesn't matter as long as keyboard_mapping in your spectrwm.conf points to your file.
Also ensure the locale of spectrwm's environment is UTF-8 when it starts:
e.g. when starting spectrwm via ~/.xinitrc:

export LANG=en_US.UTF-8
exec spectrwm

[grousk]

I'm already using a UTF-8

echo $LANG: tr_TR.UTF-8