Fatal Error on Start from console

If I start my OH2 installation (running the latest snapshot) using the start script, after startup I’ve been seeing this error for the last few weeks “[Fatel Error] :1:3 The markup in the document preceding the root element must be well-formed”

The system runs and I haven’t been able to find this in the log files. Anyone have any thoughts as to what is causing this or how to better troubleshoot?

I remember that this is caused by some upnp (or mdns?) devices in your network that send invalid responses. Chromecast might be a candidate for that. Just ignore it, it does not harm openHAB at all.

Thanks for clarifying.