Redux-toolkit: Failed to parse source map (v1.6.0)

[kien8995]

When I enable inline-source-map in webpack config. A warning was emitted:

WARNING in ../node_modules/@reduxjs/toolkit/dist/redux-toolkit.esm.js Module Warning (from ./node_modules/source-map-loader/dist/cjs.js): Failed to parse source map from '.../node_modules/@reduxjs/toolkit/dist/module.js.map' file: Error: ENOENT: no such file or directory, open '.../node_modules/@reduxjs/toolkit/dist/module.js.map'

[adriankast]

Same here using the source-map-loader v3.0.0 and webpack 5.38.1 with custom webpack configuration.

[markerikson]

Can someone put together an example repo that demonstrates this issue?

[maciejpankanin]

Here is an example repo.

I started from this boilerplate, the only changes are in this commit.

Running yarn start gives warning Failed to parse source map from...

Hope this helps 😄

[many20]

1. The Problem is that in the npm package the bundled js code has a wrong "//# sourceMappingURL=" link at the end of the file.
   The not minified ones has "//# sourceMappingURL=module.js.map" and in the minified ones the line is missing.
2. The source map references an not exiting file "module.ts".

changing sourceMappingUR redux-toolkit.esm.js to "//# sourceMappingURL=redux-toolkit.esm.js.map" and removing the "modules.ts" Ref in the redux-toolkit.esm.js.map and its working again.