Having trouble with uploading images using Form.File in React?

I'm facing an issue with my React code for uploading an image. It doesn't seem to be working and I can't figure out why. Can someone please assist me?

return (
    <div>
        <FormContainer>
            <h1>Edit Product</h1>

            {loading ? <Loader /> : error ? <Message variant='danger'>{error}</Message>
                : (
                    <Form onSubmit={submitHandler}>


                        <Form.Group controlId='image'>
                            <Form.Label>Image</Form.Label>
                            <Form.Control

                                type='text'
                                placeholder='Enter image'
                                value={image}
                                onChange={(e) => setImage(e.target.value)}
                            >
                            </Form.Control>

                            <Form.File
                                id='image-file'
                                label='Choose File'
                                onChange={uploadFileHandler}
                                custom
                            >

                            </Form.File>
                            {uploading && <Loader />}

                        </Form.Group>

                        <Button type='submit' variant='primary'>
                            Update
                    </Button>

                    </Form>
                )}

        </FormContainer >
    </div>

)

The issue seems to be related to the Form.File component because when I remove it, the form loads successfully.

Below is the error message I see in the console:

react-dom development js 28439 Uncaught Error:
Element type is invalid:</p>
expected a string (for built-in components) 
or a class/function (for composite components) but got:
undefined. 
You likely forgot to export your component 
from the file it's defined in, 
or you might have mixed up default and named imports.

Check the render method of `ProductEditScreen`.

Answer №1

After some investigation, it was discovered that the issue stemmed from Form.File not being compatible with react-bootstrap v2 and instead needed to be used in v1. To resolve this, the code snippet below was replaced:

<Form.File
     id='image-file'
     label='Choose File'
     onChange={uploadFileHandler}
     custom
>

The updated solution involved switching to Form Control like so:

                            

<Form.Control
    type='file'
    id='image-file'
    label='Choose File'
    custom
    onChange={uploadFileHandler}
>

Answer №2

Here is the answer:

<Form.Control
    type='file'
    controlId='image-file'
    label='Select File'
    custom
    onChange={handleUpload}
>

Remember to include controlId to prevent any warnings.

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