Cannot read property 'prefix_exceptions' of undefined

[BLGupta]

Getting below error when trying to run this project

Failed to compile.

./src/App.css (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-4-1!./node_modules/postcss-loader/src??postcss!./src/App.css)
TypeError: Cannot read property 'prefix_exceptions' of undefined
at Array.map ()