React native – View config getter callback for component `style` must be a function received `undefined` Make sure to start component names with a capital letter

While i am using MUI library in react native they give me a error like [ERROR Invariant Violation: View config getter callback for component style must be a function (received undefined). Make sure to start component names with a capital letter.] this as I am not using any style in the code`

import * as React from 'react';
import Button from '@mui/material/Button';
import Stack from '@mui/material/Stack';
import {Text} from 'react-native';
import externalStyle from './Style/externalStyle'

export default function ContainedButtons() {
  return (
    <Stack direction="row" spacing={2}>
      <Button style={style.Text}>Contained</Button>
      <Button variant="contained" disabled>
        Disabled
      </Button>
      <Button variant="contained" href="#contained-buttons">
        Link
      </Button>
    </Stack>
  );
}

(https://phpout.com/wp-content/uploads/2023/10/E3obt.png). can anyone please solve my problem. Error show

I refer some video and try external style that is also not use they give me same error