How/where I can set eslint config file in spacemacs
Spacemacs (and flycheck, the autocompletion plugin that interfaces with eslint) don't look for eslint configs, they delegate that to eslint itself. If you're getting this issue it means eslint itself is erroring out when it tries to load your project config.
Run eslint --print-config .
from your project directory and resolve all errors it prints out, and that should fix it.
I'm running a mac setup, this is what worked for me:
assuming you've installed eslint, you can enable syntax checking in your ~/.spacemacs
file
Begin by typing SPC f e d
and uncommenting syntax-checking
;; spell-checking
syntax-checking
- resync your config by typing
SPC f e R
- open a javascript file in your project, which should have an
.eslintrc
in its root - type
SPC e v
From here you can confirm that javascript-eslint is enabled and that an .eslintrc
has been detected for your project.