Mui 图标在 React 中不起作用（基本示例卡）

Question

    C:\Users\Yeap\Documents\react sitio web\my-app\node_modules\react-scripts\scripts\start.js:19
  throw err;
  ^

[Error: ENOENT: no such file or directory, stat 'C:\Users\All Users'] {
  errno: -4058,
  code: 'ENOENT',
  syscall: 'stat',
  path: 'C:\Users\All Users'
}

有时在浏览器 localhost 中显示错误消息，./src/components/Products.jsx Module not found: Can't resolve '@mui/icons-material/ExpandMore' in 'C:\Users\Yeap\Documents\react sitio web\my-app\src\components'

我试过了（官方文档和 github 问题）

npm install @material-ui/core
npm install @material-ui/icons
npm install @material-ui/core@next @emotion/react @emotion/styled
npm install @material-ui/icons --force

npm install @mui/material @emotion/react @emotion/styled

但没有任何效果:(((

这是示例“Card MUI”中的代码 Official documentation

import * as React from 'react';
import { styled } from '@mui/material/styles';
import Card from '@mui/material/Card';
import CardHeader from '@mui/material/CardHeader';
import CardMedia from '@mui/material/CardMedia';
import CardContent from '@mui/material/CardContent';
import CardActions from '@mui/material/CardActions';
import Collapse from '@mui/material/Collapse';
import Avatar from '@mui/material/Avatar';
import IconButton from '@mui/material/IconButton';
import Typography from '@mui/material/Typography';
import { red } from '@mui/material/colors';
import FavoriteIcon from '@mui/icons-material/Favorite';
import ShareIcon from '@mui/icons-material/Share';
import ExpandMoreIcon from '@mui/icons-material/ExpandMore';
import MoreVertIcon from '@mui/icons-material/MoreVert';

const ExpandMore = styled((props) => {
  const { expand, ...other } = props;
  return <IconButton {...other} />;
})(({ theme, expand }) => ({
  transform: !expand ? 'rotate(0deg)' : 'rotate(180deg)',
  marginLeft: 'auto',
  transition: theme.transitions.create('transform', {
    duration: theme.transitions.duration.shortest,
  }),
}));

export default function RecipeReviewCard() {
  const [expanded, setExpanded] = React.useState(false);

  const handleExpandClick = () => {
    setExpanded(!expanded);
  };

  return (
    <Card sx={{ maxWidth: 345 }}>
      <CardHeader
        avatar={
          <Avatar sx={{ bgcolor: red[500] }} aria-label="recipe">
            R
          </Avatar>
        }
        action={
          <IconButton aria-label="settings">
            <MoreVertIcon />
          </IconButton>
        }
        title="Shrimp and Chorizo Paella"
        subheader="September 14, 2016"
      />
      <CardMedia
        component="img"
        height="194"
        image="/static/images/cards/paella.jpg"
        alt="Paella dish"
      />
      <CardContent>
        <Typography variant="body2" color="text.secondary">
          This impressive paella is a perfect party dish and a fun meal to cook
          together with your guests. Add 1 cup of frozen peas along with the
          mussels, if you like.
        </Typography>
      </CardContent>
      <CardActions disableSpacing>
        <IconButton aria-label="add to favorites">
          <FavoriteIcon />
        </IconButton>
        <IconButton aria-label="share">
          <ShareIcon />
        </IconButton>
        <ExpandMore
          expand={expanded}
          onClick={handleExpandClick}
          aria-expanded={expanded}
          aria-label="show more">
          <ExpandMoreIcon />
        </ExpandMore>
      </CardActions>
      <Collapse in={expanded} timeout="auto" unmountOnExit>
        <CardContent>
          <Typography paragraph>Method:</Typography>
          <Typography paragraph>
            Heat 1/2 cup of the broth in a pot until simmering, add saffron and
            set aside for 10 minutes.
          </Typography>
          <Typography paragraph>
            Heat oil in a (14- to 16-inch) paella pan or a large, deep skillet
            over medium-high heat. Add chicken, shrimp and chorizo, and cook,
            stirring occasionally until lightly browned, 6 to 8 minutes.
            Transfer shrimp to a large plate and set aside, leaving chicken and
            chorizo in the pan. Add pimentón, bay leaves, garlic, tomatoes,
            onion, salt and pepper, and cook, stirring often until thickened and
            fragrant, about 10 minutes. Add saffron broth and remaining 4 1/2
            cups chicken broth; bring to a boil.
          </Typography>
          <Typography paragraph>
            Add rice and stir very gently to distribute. Top with artichokes and
            peppers, and cook without stirring, until most of the liquid is
            absorbed, 15 to 18 minutes. Reduce heat to medium-low, add reserved
            shrimp and mussels, tucking them down into the rice, and cook again
            without stirring, until mussels have opened and rice is just tender,
            5 to 7 minutes more. (Discard any mussels that don’t open.)
          </Typography>
          <Typography>
            Set aside off of the heat to let rest for 10 minutes, and then
            serve.
          </Typography>
        </CardContent>
      </Collapse>
    </Card>
  );
}

但是没有任何效果:((

我已经尝试创建新项目，正在重新安装 npm 包，正在重新启动电脑，但它 不工作 。 更基本的示例有效，但三个示例无效 （MUI官方网站）

Answer 1

您安装了 @material-ui 个包，但从 @mui 个包导入。那行不通的。

您需要安装的软件包是：

// with npm
npm install @mui/material @emotion/react @emotion/styled

// with yarn
yarn add @mui/material @emotion/react @emotion/styled

请参考：https://mui.com/getting-started/installation/

Answer 2

梅包

// with npm
npm install @mui/material @emotion/react @emotion/styled

和 Mui 图标（在我的例子中）

// with npm
npm install @mui/icons-material

错了！！

npm install @material-ui/icons
npm install @material-ui/core@next @emotion/react @emotion/styled

这解决了我的问题，感谢@Delice 帮助我:)

Mui 图标在 React 中不起作用（基本示例卡）

Mui icons doesn't work in React (Basic example Card)

javascript

reactjs

material-ui

icons

jsx