Cannot read properties of undefined (reading 'pop') during Next.js build process"

[ItsPriyadharsani]

npm run dev

employee-details@1.0.0 dev
next dev

✓ Ready in 10.7s
○ Compiling / ...
⨯ ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[6].oneOf[14].use[1]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[6].oneOf[14].use[2]!./node_modules/next/dist/build/webpack/loaders/resolve-url-loader/index.js??ruleSet[1].rules[6].oneOf[14].use[3]!./node_modules/next/dist/compiled/sass-loader/cjs.js??ruleSet[1].rules[6].oneOf[14].use[4]!./src/assets/scss/main.scss
Cannot read properties of undefined (reading 'indexOf')

Import trace for requested module:
./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[6].oneOf[14].use[1]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[6].oneOf[14].use[2]!./node_modules/next/dist/build/webpack/loaders/resolve-url-loader/index.js??ruleSet[1].rules[6].oneOf[14].use[3]!./node_modules/next/dist/compiled/sass-loader/cjs.js??ruleSet[1].rules[6].oneOf[14].use[4]!./src/assets/scss/main.scss
./src/assets/scss/main.scss

[snowystinger]

Can you provide a reproduction repo or stackblitz? are you using React Spectrum components? React Aria Components? just the hooks?
Did this work before adding whichever library from us? or did you just add sass as well?
Could you try excluding our packages from your sass-loader if you haven't already? though I don't see it trying to import our CSS, so it really looks like it's an error trying to import your own scss file?