After running npm start, the following error message is displayed:
TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined
at validateString (internal/validators.js:124:11)
at Object.join (path.js:1148:7)
at noopServiceWorkerMiddleware (/Users/hqu5813/Desktop/appauth-react/node_modules/react-dev-utils/noopServiceWorkerMiddleware.js:14:26)
at Layer.handle [as handle_request] (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:317:13)
at /Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:284:7
at Function.process_params (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:335:12)
at next (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:275:10)
at launchEditorMiddleware (/Users/hqu5813/Desktop/appauth-react/node_modules/react-dev-utils/errorOverlayMiddleware.js:20:7)
at Layer.handle [as handle_request] (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:317:13)
at /Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:284:7
at Function.process_params (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:335:12)
at next (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/index.js:275:10)
at handleWebpackInternalMiddleware (/Users/hqu5813/Desktop/appauth-react/node_modules/react-dev-utils/evalSourceMapMiddleware.js:42:7)
at Layer.handle [as handle_request] (/Users/hqu5813/Desktop/appauth-react/node_modules/express/lib/router/layer.js:95:5)
The App.js file already passes parameters to the path attribute as a string.
Expected Behavior
environment.js
.npm start
.Actual Bahavior
After running
npm start
, the following error message is displayed:The
App.js
file already passes parameters to thepath
attribute as a string.Possible Fix
According to a StackOverflow article - https://stackoverflow.com/questions/60234640/typeerror-err-invalid-arg-type-the-path-argument-must-be-of-type-string-re - the error is caused because of an out-of-date version of
react-scripts
.Steps Taken to Resolve Issue
rm -rf node_modules
.react-scripts
version inpackage.json
:npm i
to reinstall dependencies.npm start
.