can't resolve '@material-ui/lab/Alert' code example

Example 1: an't resolve '@material-ui/lab/Autocomplete'

npm install @material-ui/lab

Example 2: Can't resolve '@material-ui/lab/DatePicker'

Try running npm install @material-ui/core@next and npm install @material-ui/lab@next

Example 3: install material ui lab

yarn add @material-ui/lab