Couldn't resolve parser "postcss"

[jose4125]

when I ran :Prettier to format my scss file. I got this error, Could you help me fixing it? thanks

[coc.nvim]: UnhandledRejection: Couldn't resolve parser "postcss"
Error: Couldn't resolve parser "postcss"
    at resolveParser (/Users/bbb/Sites/rot-project/ui-rot/node_modules/prettier/index.js:11343:15)
    at normalize$1 (/Users/bbb/Sites/rot-project/ui-rot/node_modules/prettier/index.js:11438:18)
    at formatWithCursor (/Users/bbb/Sites/rot-project/ui-rot/node_modules/prettier/index.js:15034:12)
    at /Users/bbb/Sites/rot-project/ui-rot/node_modules/prettier/index.js:51620:12
    at Object.format (/Users/bbb/Sites/rot-project/ui-rot/node_modules/prettier/index.js:51640:12)
    at /Users/bbb/.config/coc/extensions/node_modules/coc-prettier/node_modules/prettier-stylelint/src/index.js:129:30

[nulty]

I just hit this issue myself.

The issue is that coc-prettier is using prettier-stylelint to interface with prettier for formatting scss. That project hasn't been updated in 4 years. Recommendation is to switch to stylelint-prettier which is under development and maintained by the prettier organisation.

The parser in prettier-stylelint is hard coded to use postcss but prettier has changed it's API is require css as the parser name.

[nulty]

I think using the CocConfig flag "prettier.onlyUseLocalVersion": true is a work around but you'll need it installed locally of course.