I’m using Next.js version 13.5.5 and when I run npm run build It gives me this error:
./build/types/app/layout.ts:8:13
Type error: Type 'OmitWithTag<typeof import("D:/nodeprogs/br-books-frontend/src/app/layout"), "metadata" | "default" | "config" | "generateStaticParams" | "revalidate" | "dynamic" | "dynamicParams" | "fetchCache" | "preferredRegion" | "runtime" | "maxDuration" | "generateMetadata", "">' does not satisfy the constraint '{ [x: string]: never; }'.
Property 'MyApp' is incompatible with index signature.
Type '({ children }: { children: React.ReactNode; }) => React.JSX.Element' is not assignable to type 'never'.
6 |
7 | // Check that the entry is a valid entry
> 8 | checkFields<Diff<{
| ^
9 | default: Function
10 | config?: {}
11 | generateStaticParams?: Function
Here’s some relevant code:
export const MyApp = ({ children }: { children: React.ReactNode }) => {
const theme = ThemeSettings();
// const customizer = useSelector((state: AppState) => state.customizer);
return (
<>
<SpeedInsights />
<NextTopLoader color="#ee7b48" />
{/* <NextAppDirEmotionCacheProvider options={{ key: "flexy" }}> */}
<ThemeProvider theme={theme}>
{/* CssBaseline kickstart an elegant, consistent, and simple baseline to build upon. */}
<CssBaseline />
{children}
</ThemeProvider>
{/* </NextAppDirEmotionCacheProvider> */}
</>
);
};
export default function RootLayout({
children,
}: {
children: React.ReactNode;
}) {
const [loading, setLoading] = React.useState(true);
return (
<html lang="en" suppressHydrationWarning>
<body>
<Provider store={store}>
<ToastContainer
position="top-right"
autoClose={3000}
hideProgressBar={false}
newestOnTop={false}
closeOnClick
rtl={false}
pauseOnFocusLoss
draggable
pauseOnHover
theme="light"
/>
{loading ? (
// eslint-disable-next-line react/no-children-prop
<MyApp children={children as React.ReactNode} />
) : (
<Box
sx={{
display: "flex",
justifyContent: "center",
alignItems: "center",
width: "100%",
height: "100vh",
}}
>
<CircularProgress color="primary" />
</Box>
)}
</Provider>
</body>
</html>
);
}
It’s strange because the error comes from the build folder and I have no idea what’s causing this issue. Can anyone help me fix this problem? I don’t know why it says React.JSX element is not assignable to type ‘never’. Thanks.