`vite build` produces duplicate eslint output

[samcarswell]

vite build seems to be producing duplicate output for eslint; one for [plugin:vite-plugin-eslint] and one normal:

[plugin:vite-plugin-eslint] 
/Users/user/project/src/utilities/resourceUtils.ts
   1:10  warning  'useState' is defined but never used                @typescript-eslint/no-unused-vars
   1:20  warning  'useEffect' is defined but never used               @typescript-eslint/no-unused-vars
   4:20  warning  Unexpected any. Specify a different type            @typescript-eslint/no-explicit-any
   8:9   error    'base' is never reassigned. Use 'const' instead     prefer-const
  11:9   error    'options' is never reassigned. Use 'const' instead  prefer-const

✖ 5 problems (2 errors, 3 warnings)
  2 errors and 0 warnings potentially fixable with the `--fix` option.


/Users/user/project/src/utilities/resourceUtils.ts
   1:10  warning  'useState' is defined but never used                @typescript-eslint/no-unused-vars
   1:20  warning  'useEffect' is defined but never used               @typescript-eslint/no-unused-vars
   4:20  warning  Unexpected any. Specify a different type            @typescript-eslint/no-explicit-any
   8:9   error    'base' is never reassigned. Use 'const' instead     prefer-const
  11:9   error    'options' is never reassigned. Use 'const' instead  prefer-const

✖ 5 problems (2 errors, 3 warnings)
  2 errors and 0 warnings potentially fixable with the `--fix` option.

[MrEraxd]

@samcarswell

I have the same error. Are you using any framework? These are my rules:

"extends": [
    "eslint:recommended",
    "plugin:vue/vue3-essential",
    "plugin:@typescript-eslint/recommended",
    "prettier"
 ]

Found out that when I remove typescript plugin it is working fine.

Also setting emmitError to false removes one of outputs, same for emmitWarning.

Everything is fixed by disabling cache.

[olafszad]

I have the same issue.

[GitMurf]

@samcarswell et al, not sure if you ever got to the bottom of this but I was experiencing a similar issue with vite and it ended up being the solidjs plugin creating duplicate build config entries (running twice). This sounds very similar to your issue. Check out details here: https://github.com/solidjs/vite-plugin-solid/pull/101