React Native app with react-hook-form not working (View config getter callback form component 'input' must be a function (received 'undefined')

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I'm creating a mobile app with React Native and I need to use a form. I want to use react-hook-form, but I can't get it to work, even in a newly created project. I did the following:

  1. Created new React Native projects: it runs as it should
  2. npm install react-hook-form
  3. copy-paste following code to App.js:
import React from "react";
import { useForm } from "react-hook-form";

export default function App() {
  const { register, handleSubmit, watch, formState: { errors } } = useForm();
  const onSubmit = data => console.log(data);

  console.log(watch("example")); // watch input value by passing the name of it

  return (
    /* "handleSubmit" will validate your inputs before invoking "onSubmit" */
    <form onSubmit={handleSubmit(onSubmit)}>
      {/* register your input into the hook by invoking the "register" function */}
      <input defaultValue="test" {...register("example")} />
      
      {/* include validation with required or other standard HTML validation rules */}
      <input {...register("exampleRequired", { required: true })} />
      {/* errors will return when field validation fails  */}
      {errors.exampleRequired && <span>This field is required</span>}
      
      <input type="submit" />
    </form>
  );
}

It gives following error: screenshot of emulator I have no idea what's the problem. Is there something wrong with the installation of react-hook-form as it doesn't recognize the input field?

Thanks!

0 Answers
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