I get this error when using "Cropper" from the react-easy-crop lib, I've tried a few things that I found on forums such as adding @types/react, importing * as React from "react" but nothing seems to work.
Here's the code giving me trouble:
import * as React from "react";
import Cropper from "react-easy-crop";
export default function CropperPage({action , valuePro}: any) {
return (
<Cropper // <-- This is giving me the error
cropShape= "round"
disableAutomaticStylesInjection="true"
image={image}
crop={crop}
zoom={zoom}
aspect={1}
onCropChange={setCrop}
onZoomChange={setZoom}
onCropComplete={onCropComplete}
/>
);
}
The whole error message is:
Blockquote JSX element class does not support attributes because it does not have a 'props' property.ts(2607) 'Cropper' cannot be used as a JSX component. Its instance type 'Cropper' is not a valid JSX element. Type 'Cropper' is missing the following properties from type 'ElementClass': context, setState, forceUpdate, props, refsts(2786) (alias) class Cropper import Cropper
So I actually ran into this recently and after failing to find an answer here, was able to use typescript's traceResolution
feature to discover: typescript was resolving import "react"
to node_modules/react/index.js
instead of node_modules/@types/react/index.d.ts
. Some changes to my tsconfig.json were able to resolve this - I had node_modules/*
in one of my paths
matches, and had to add node_modules/@types/*
to also get it to look for @types/
packages.
So I'd recommend using traceResolution (either as a tsc flag, or a tsconfig.json field) and seeing if react is mis-resolving, and if it is the case, focus on fixing that; it could be the same issue where node_modules/react gets found instead of node_modules/@types/react though the traceResolution output will have a clear final word on that.