Some Error message in console

[lanqy]

After run

yarn install and yarn start

Eeverything works fine ( visit http://localhost:8080 and the page show fine )

But the console show error message below :

ERROR in ./node_modules/react-dom/index.js
Module not found: Error: Can't resolve './cjs/react-dom.production.min.js' in '/Applications/reason/hnews/reason-react-hacker-news/node_modules/react-dom'
 @ ./node_modules/react-dom/index.js 35:19-63
 @ ./node_modules/reason-react/lib/js/src/ReactDOMRe.js
 @ ./lib/js/src/index.js
 @ multi (webpack)-dev-server/client?http://localhost:8080 ./lib/js/src/index

ERROR in ./node_modules/react/index.js
Module not found: Error: Can't resolve './cjs/react.production.min.js' in '/Applications/reason/hnews/reason-react-hacker-news/node_modules/react'
 @ ./node_modules/react/index.js 4:19-59
 @ ./node_modules/reason-react/lib/js/src/ReasonReact.js
 @ ./lib/js/src/index.js
 @ multi (webpack)-dev-server/client?http://localhost:8080 ./lib/js/src/index