[SOLVED] Very strange error during startup of openhab2

[lipp_markus]

This connected to the fact that OH2 has a somewhat unstructured start up process and can load and execute rules before other prerequisites are ready (items, persistence, etc).
There are several threats discussing the startup behavior, here are a few options mentioned that you may want to consider, all require some work:

Cleaning up the startup process / renaming rules (windows possible)

I’ve run in some issues with the current startup process. Everything is starting at once which leads to several exceptions, errors and other problems. In my case the most annoying problem is the Homematic-Channel not found-problem. According to my opinion, a reason is the triggering of rules during startup which leads to timing problems and other race conditions which then lead to further problems after startup. I often read about moving or renaming the rules and copying back after startup, so…

Alternatively, if it does not cause you any follow up problems, just ignore