Unable to create a configuration directory for [FishShell] Please set the $XDG_CONFIG_HOME variable

stackexchange!

I'm getting this error when starting fishshell

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melanie:~ melanie$ fish

fish: Unable to create a configuration directory for fish. Your personal settings will not be saved. Please set the $XDG_CONFIG_HOME variable to a directory where the current user has write access.

Welcome to fish, the friendly interactive shell

Type help for instructions on how to use fish

melanie@melanie ~>

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so, I've been searching everywhere and I just can't seem to figure out how exactly to set this variable. please help!

thanks :D