False error using react-bootstrap Collapse component

I get a false error report for the 'in' prop on the react-bootstrap Collapse component. The code compiles and runs fine. I am using Resharper Ultimate 2019.2,  and had the same error in the previous version.

Here is an example

<Collapse in={this.state.open}>
<div id="collapse-notes" className="notes">
{this.props.list.notes}
</div>
</Collapse>