我正在尝试为我的用户设置一个对话框/模式来订阅时事通讯。当它是一个普通的 React 应用程序时，代码是完全可用的，但我现在正在转换为 Next.js。现在，我收到一个 RuntimeError 抱怨钩子配置不正确。早些时候，我在让 Material UI 与 next.js 一起运行时遇到了问题。但这已经解决了。但是我在这里迷路了，有人知道发生了什么吗？
我的组件：
import { TextValidator, ValidatorForm } from "react-material-ui-form-validator";
import Button from "@material-ui/core/Button";
import Dialog from "@material-ui/core/Dialog";
import DialogContent from "@material-ui/core/DialogContent";
import DialogContentText from "@material-ui/core/DialogContentText";
import DialogTitle from "@material-ui/core/DialogTitle";
import { Grid } from "@material-ui/core";
import React from "react";
import Slide from "@material-ui/core/Slide";
export default function EmailPopUp() {
const [showOpen, setShowOpen] = React.useState(true);
const [open, setOpen] = React.useState(showOpen);
const [form, setForm] = React.useState({
submitted: false,
formData: { email: "" },
});
const refInput = React.useRef("form");
const isBrowser = () => typeof window !== "undefined";
const handleClickOpen = () => setOpen(true);
const handleClose = () => setOpen(false);
const handleChange = (event) => {
const { formData } = form;
formData[event.target.name] = event.target.value;
setForm({ formData });
};
const handleSubmit = () => {
this.setForm({ submitted: true }, () => {
formSubmitAction();
});
};
const formSubmitAction = () => {
fetch(`${process.env.NEXT_PUBLIC_BACKEND_API}subscribe_newsletter/`, {
method: "POST",
headers: {
Accept: "application/json",
"Content-Type": "application/json",
},
body: JSON.stringify({
email: form.formData.email,
}),
}).finally(handleClose());
};
const Transition = React.forwardRef(function Transition(props, ref) {
return <Slide direction="up" ref={ref} {...props} />;
});
return (
isBrowser && (
<div className="dialog-container">
<Dialog
disableBackdropClick={true}
open={open}
TransitionComponent={Transition}
keepMounted
onClose={handleClose}
aria-labelledby="alert-dialog-slide-title"
aria-describedby="alert-dialog-slide-description"
>
<DialogTitle id="alert-dialog-slide-title">
Newsletter
</DialogTitle>
<DialogContent>
<DialogContentText id="alert-dialog-slide-description">
<Grid container spacing={2} justify="center">
<Grid item xs="auto">
<img
src="/images/newsletter-img.jpg"
className="newsletter-image"
/>
</Grid>
<Grid item xs="auto">
<div className="dialog-content">
</div>
<ValidatorForm ref={refInput} onSubmit={handleSubmit}>
<TextValidator
label="Email"
onChange={handleChange}
name="email"
value={form.formData.email}
validators={["required", "isEmail"]}
errorMessages={[
"this field is required",
"email is not valid",
]}
/>
<div className="newsletter-button">
<Button
type="submit"
variant="contained"
color="secondary"
>
Subscribe
</Button>
</div>
</ValidatorForm>
</Grid>
</Grid>
</DialogContentText>
</DialogContent>
</Dialog>
</div>
)
);
}
堆栈跟踪：
Unhandled Runtime Error
Error: Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:
1. You might have mismatching versions of React and the renderer (such as React DOM)
2. You might be breaking the Rules of Hooks
3. You might have more than one copy of React in the same app
See for tips about how to debug and fix this problem.
Call Stack
resolveDispatcher
../node_modules/react/cjs/react.development.js (1465:0)
Object.useContext
../node_modules/react/cjs/react.development.js (1473:0)
useTheme
../node_modules/@material-ui/styles/esm/useTheme/useTheme.js (4:19)
useStyles
../node_modules/@material-ui/styles/esm/makeStyles/makeStyles.js (222:24)
WithStyles
../node_modules/@material-ui/styles/esm/withStyles/withStyles.js (55:0)
renderWithHooks
node_modules/react-dom/cjs/react-dom.development.js (14803:0)
updateForwardRef
node_modules/react-dom/cjs/react-dom.development.js (16816:0)
beginWork
node_modules/react-dom/cjs/react-dom.development.js (18645:0)
HTMLUnknownElement.callCallback
node_modules/react-dom/cjs/react-dom.development.js (188:0)
Object.invokeGuardedCallbackDev
node_modules/react-dom/cjs/react-dom.development.js (237:0)
invokeGuardedCallback
node_modules/react-dom/cjs/react-dom.development.js (292:0)
beginWork$1
node_modules/react-dom/cjs/react-dom.development.js (23203:0)
performUnitOfWork
node_modules/react-dom/cjs/react-dom.development.js (22154:0)
workLoopSync
node_modules/react-dom/cjs/react-dom.development.js (22130:0)
performSyncWorkOnRoot
node_modules/react-dom/cjs/react-dom.development.js (21756:0)
eval
node_modules/react-dom/cjs/react-dom.development.js (11089:0)
unstable_runWithPriority
node_modules/scheduler/cjs/scheduler.development.js (653:0)
runWithPriority$1
node_modules/react-dom/cjs/react-dom.development.js (11039:0)
flushSyncCallbackQueueImpl
node_modules/react-dom/cjs/react-dom.development.js (11084:0)
flushSyncCallbackQueue
node_modules/react-dom/cjs/react-dom.development.js (11072:0)
flushSync
node_modules/react-dom/cjs/react-dom.development.js (21932:0)
Object.scheduleRefresh
node_modules/react-dom/cjs/react-dom.development.js (11626:0)
eval
node_modules/react-refresh/cjs/react-refresh-runtime.development.js (304:0)
Set.forEach
<anonymous>
Object.performReactRefresh
node_modules/react-refresh/cjs/react-refresh-runtime.development.js (293:0)
eval
node_modules/@next/react-refresh-utils/internal/helpers.js (124:0)