1<FormControl className={classes.formControl} error>
2  <InputLabel id="demo-simple-select-error-label">Name</InputLabel>
3  <Select
4    labelId="demo-simple-select-error-label"
5    id="demo-simple-select-error"
6    value={age}
7    onChange={handleChange}
8    >
9    <MenuItem value={10}>Ten</MenuItem>
10    <MenuItem value={20}>Twenty</MenuItem>
11    <MenuItem value={30}>Thirty</MenuItem>
12  </Select>
13  <FormHelperText>Error</FormHelperText>
14</FormControl>