Can't resolve SCSS file after upgrade to create-react-app 4.0.1

Describe the bug

Just upgraded my React.js app to the new version of CRA (create-react-app 4.0.1), I ejected the project, and when I try to compile (npm start), I got error on my SCSS files (the first file that try to be loaded is animations.scss):

Failed to compile.
./src/assert/css/master.scss (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-6-1!./node_modules/postcss-loader/src??postcss!./node_modules/resolve-url-loader??ref--5-oneOf-6-3!./node_modules/sass-loader/dist/cjs.js??ref--5-oneOf-6-4!./src/assert/css/master.scss)
Error: Can't resolve './animations.scss' in 'C:\Or\Web\project\project\src\assert\css' 

I also use the package: “node-sass”: “^4.14.1”

My master.scss file:

@import url('./all.css');
@import url('./animations.scss');
@import url('./big-flag.scss');
@import url('./coat.scss');
@import url('./flags16-both.scss');
@import url('./flags16-extra.scss');
@import url('./flags32-both.scss');
@import url('./flags32-extra.scss');
@import url('./locations.scss');
@import url('./index.scss');

Does anyone face this and have a fix? Thanks in advance!

Expected behavior

Run as before

Actual behavior

Failed to compile.
./src/assert/css/master.scss (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-6-1!./node_modules/postcss-loader/src??postcss!./node_modules/resolve-url-loader??ref--5-oneOf-6-3!./node_modules/sass-loader/dist/cjs.js??ref--5-oneOf-6-4!./src/assert/css/master.scss)
Error: Can't resolve './animations.scss' in 'C:\Or\Web\project\project\src\assert\css' 

[windinging]

same issue

[sureshUngarala]

@marko-hologram @import url() isn’t a wrong format. For media query usage, this is the format to import S(CSS) files unless the media query is used in the imported file. This @import url(...path) syntax seems to be failing to resolve in CRA v4.x.x

E.g: Importing scss files from a dir relative to src folder

@import url(“./styles/screens/desktops.scss”) only screen and (min-width: 1900px); @import url(“./styles/print.scss”) print;