TypeError: Cannot read property 'muiName' of undefined - upload

What you were expecting:

Trying to use SimpleForm and FileInput

What happened instead: get TypeError: Cannot read property ‘muiName’ of undefined

Related code:

import * as React from 'react';

import { createMuiTheme, makeStyles } from '@material-ui/core/styles';
import { ThemeProvider } from '@material-ui/core/styles';
import { lightTheme } from './themes';

import { Create, SimpleForm, TextInput, FileInput, FileField } from 'react-admin';

const useStyles = makeStyles(theme => ({
    main: {
        flex: '1',
        marginRight: '1em',
        marginTop: 20,
    }
}));

const UploadCSV = props => {
    const classes = useStyles();
    return (
     <ThemeProvider theme={createMuiTheme(lightTheme)}>
        <Create {...props}>
            <SimpleForm redirect="list">
                <TextInput source="id" disabled variant="outline" />
                <TextInput source="name" label="Dateiname" />
                <TextInput source="beschreibung" />
                <FileInput source="pdffile" label="PDF-Template" accept="application/pdf" >
                    <FileField source="src" title="title" />
                </FileInput>
            </SimpleForm>
        </Create>
        </ThemeProvider>
    );
};

// UploadCSV.muiName = 'IconMenu';

export default UploadCSV;

Environment

• React-admin version: 3.7.0

• Last version that did not exhibit the issue (if applicable):

• React version: 16.13.1

• Browser: Windows 10 Edge

• Stack trace (in case of a JS error):

in ForwardRef(FormControl) (created by WithStyles(ForwardRef(FormControl))) in WithStyles(ForwardRef(FormControl)) (created by ForwardRef(TextField)) in ForwardRef(TextField) (created by WithStyles(ForwardRef(TextField))) in WithStyles(ForwardRef(TextField)) (created by ResettableTextField) in ResettableTextField (created by TextInput) in TextInput (at UploadCSV.js:27) in div (created by FormInput) in FormInput (created by SimpleFormView) in div (created by ForwardRef(CardContent)) in ForwardRef(CardContent) (created by WithStyles(ForwardRef(CardContent))) in WithStyles(ForwardRef(CardContent)) (created by CardContentInner) in CardContentInner (created by SimpleFormView) in form (created by SimpleFormView) in SimpleFormView (created by FormView) in FormView (created by ReactFinalForm) in ReactFinalForm (created by FormWithRedirect) in FormWithRedirect (created by SimpleForm) in SimpleForm (at UploadCSV.js:26) in div (created by ForwardRef(Paper)) in ForwardRef(Paper) (created by WithStyles(ForwardRef(Paper))) in WithStyles(ForwardRef(Paper)) (created by ForwardRef(Card)) in ForwardRef(Card) (created by WithStyles(ForwardRef(Card))) in WithStyles(ForwardRef(Card)) (created by CreateView) in div (created by CreateView) in div (created by CreateView) in CreateView (created by Create) in Create (at UploadCSV.js:25) in ThemeProvider (at UploadCSV.js:24) in UploadCSV (at Dashboard.js:117) in div (at Dashboard.js:116) in div (at Dashboard.js:100) in Dashboard (created by WithPermissions) in WithPermissions (created by Context.Consumer) in Route (created by RoutesWithLayout) in Switch (created by RoutesWithLayout) in RoutesWithLayout (created by Context.Consumer) in div (created by Layout) in main (created by Layout) in div (created by Layout) in div (created by Layout) in Layout (created by WithStyles(Layout)) in WithStyles(Layout) (created by Context.Consumer) in withRouter(WithStyles(Layout)) (created by ConnectFunction) in ConnectFunction (created by LayoutWithTheme) in ThemeProvider (created by LayoutWithTheme) in LayoutWithTheme (at App.js:26) in CustomLayout (created by Context.Consumer) in Route (created by CoreAdminRouter) in Switch (created by CoreAdminRouter) in div (created by CoreAdminRouter) in CoreAdminRouter (created by Context.Consumer) in Route (created by CoreAdminUI) in Switch (created by CoreAdminUI) in CoreAdminUI (created by AdminUI) in AdminUI (created by Admin) in Router (created by ConnectedRouter) in ConnectedRouter (created by Context.Consumer) in ConnectedRouterWithContext (created by ConnectFunction) in ConnectFunction (created by CoreAdminContext) in TranslationProvider (created by CoreAdminContext) in Provider (created by CoreAdminContext) in CoreAdminContext (created by AdminContext) in AdminContext (created by Admin) in Admin (at App.js:40) in App (at src/index.js:9) in StrictMode (at src/index.js:8)