Module not found: Can't resolve '@mui/lab/AdapterDateFns'

user_14613514 0
Viewed 24107

I was using the Material UI Timepicker but after updating to MUI 5 it is not working anymore. I updated everything to @next and @material-ui/core (version 5.0.0-beta.5) and @material-ui/lab (version: 5.0.0-alpha.44).

material-ui reactjs
5 Answers

If you copy the Timepicker code from the MUI docs, you also need to install the lab package which contains the adapter code to integrate with date-fns. See the requirements here. For reference, you can see the package.json file from the live demo.

npm i @mui/lab
user_94494260

I had the same issue. What I did was installing date-fns as well

  npm i date-fns

I then stopped the localhost server and restart it again with npm start (I was using react)

npm start
user_115646810

sometimes it just needs this :

yarn add @mui/lab
user_129021080

install both npm i @mui/lab and npm i @mui/material

user_168556230

If after installing @mui/lab it doesn't work, You can add:

npm i @mui/material

Or

yarn add @mui/material
user_152227640
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