Unable to find node on an unmounted component.

Reporting a Bug?

import React from 'react';
import SortableTree from 'react-sortable-tree';
import 'react-sortable-tree/style.css';

class App extends React.Component{

    state = {
        treeData: [
            { title: 'Chicken', children: [{ title: 'Egg' }] },
            { title: 'Fish', children: [{ title: 'fingerline' }] },
        ],
    };
    

    render() {
        return(
            <div>
                <SortableTree
                    treeData={this.state.treeData}
                />
            </div>
        )
    }
}

export default App;

[OR13]

As noted https://github.com/frontend-collective/react-sortable-tree/issues/830#issuecomment-722396912

Downgrading to:

    "react": "16.14",
    "react-dom": "16.14",
    "react-scripts": "4.0.0",
    "react-sortable-tree": "^2.8.0",

Resolved this issue for me.

[ArashArzandeh]

Just set onChange={(treeData) => setItems([…treeData])} isVirtualized={false}