Function components do not support contextType.

Do you want to request a feature or report a bug?

Bug

What is the current behavior?

Warning: withRouter(RegisterModal): Function components do not support contextType.

What is the expected behavior?

No error

Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?

16.6.0

https://codesandbox.io/s/01zl4m022v

Unfortunately, I’m unable to reproduce this in codesandbox…

import React, { Component } from "react";
import { withRouter } from "react-router-dom";
import ErrorContext from "./ErrorContext";

class RegisterModal extends Component {
  render() {
    return <div>test</div>;
  }
}

RegisterModal.contextType = ErrorContext;

// this doesn't cause any error:
// export default RegisterModal;
// this causes an error:
export default withRouter(RegisterModal);

For some reason, whenever I wrap my RegisterModal component with withRouter, I get this error: Warning: withRouter(RegisterModal): Function components do not support contextType.. The weird thing is I’m setting contextType directly on the class, before the HOC function is applied.

[bjm88]

was usings contextType = ThemeContext for example on my component as context api suggests, was on react 16.6.1 and it still had this issue…

[kiranvj]

Yes, the issue persists even after updating hoist-non-react-statics. See the issue discussed here