We are incompatible with JetBrains Resharper indeed. We are competing for the same Visual Studio resources which could potentially create a ton of trouble if you run both of the add-ins together. I doubt that anybody managed to run them together but if you know somebody that did that I'd be really interested in all the details.
So you have to disable Resharper to check out on JustCode. You could always re-enable it later, however, as long as one of them is disabled they coexist happily.
the Telerik team