Cannot find namespace 'JSX'

[hieunguyen2211]

Describe the bug
I got this error message after using version 4.7.0 with React 19 without setting "skipLibCheck" to true in "tsconfig.json":

../node_modules/@monaco-editor/react/dist/index.d.ts(106,295): error TS2503: Cannot find namespace 'JSX'.

Expected behavior
There is no error if "skipLibCheck" is set to false.

[elijaholmos]

I'm getting an error which may be related (React 19 & monaco editor v4.7.0):

'Editor' cannot be used as a JSX component.
  Its type 'MemoExoticComponent<({ defaultValue, defaultLanguage, defaultPath, value, language, path, theme, line, loading, options, overrideServices, saveViewState, keepCurrentModel, width, height, className, wrapperProps, beforeMount, onMount, onChange, onValidate, }: EditorProps) => Element>' is not a valid JSX element type.
    Type 'MemoExoticComponent<({ defaultValue, defaultLanguage, defaultPath, value, language, path, theme, line, loading, options, overrideServices, saveViewState, keepCurrentModel, width, height, className, wrapperProps, beforeMount, onMount, onChange, onValidate, }: EditorProps) => Element>' is not assignable to type '(props: any) => ReactNode | Promise<ReactNode>'.
      Types of parameters 'props' and 'props' are incompatible.
        Type 'any' is not assignable to type 'never'.ts(2786)