Runtime warning

[karlkras]

After having this problem with my own package after falling your tutorial, I checked via a fork of your repo if it was an issue with the original too. Apparently it is... while the component seems to be functioning as expected, here's what it does at startup:

$ yarn start
yarn run v1.22.17
warning ..\..\package.json: No license field
$ react-scripts start
(node:31496) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
(Use `node --trace-deprecation ...` to show where the warning was created)
(node:31496) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
Starting the development server...

Compiled with warnings.

Failed to parse source map from 'C:\Users\kkrasnowsky\work\test-lib-app\node_modules\@languagelinetranslation\template-react-component-library\src\components\Button\Button.tsx' file: Error: ENOENT: no such file or directory, open 'C:\Users\kkrasnowsky\work\test-lib-app\node_modules\@languagelinetranslation\template-react-component-library\src\components\Button\Button.tsx'

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assets by path static/ 1.58 MiB
  asset static/js/bundle.js 1.57 MiB [emitted] (name: main) 1 related asset
  asset static/js/node_modules_web-vitals_dist_web-vitals_js.chunk.js 6.93 KiB [emitted] 1 related asset
  asset static/media/logo.6ce24c58023cc2f8fd88fe9d219db6c6.svg 2.57 KiB [emitted] (auxiliary name: main)
asset index.html 1.67 KiB [emitted]
asset asset-manifest.json 546 bytes [emitted]
cached modules 1.46 MiB (javascript) 31.3 KiB (runtime) [cached] 123 modules

WARNING in ./node_modules/@languagelinetranslation/template-react-component-library/dist/esm/index.js
Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from 'C:\Users\kkrasnowsky\work\test-lib-app\node_modules\@languagelinetranslation\template-react-component-library\src\components\Button\Button.tsx' file: Error: ENOENT: no such file or directory, open 'C:\Users\kkrasnowsky\work\test-lib-app\node_modules\@languagelinetranslation\template-react-component-library\src\components\Button\Button.tsx'
 @ ./src/App.tsx 5:0-83 45:37-43
 @ ./src/index.tsx 7:0-24 11:33-36

1 warning has detailed information that is not shown.
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webpack 5.67.0 compiled with 1 warning in 8463 ms
Files successfully emitted, waiting for typecheck results...
Issues checking in progress...
No issues found.

any ideas on how to fix this?

[karlkras]

Hmmm, this would appear to be the culprit