After Upgrade to 2.5.0 Internal Server Error in PaperUI

Hi I’m running OH 2.5 on Openhabian.
It’s an upgrade installation of OH 2.4, with version 2.4 it worked without an issue
Today I wanted to add a new Thing.
Adding the thing worked, but I can’t add a Channel in PaperUI
I always get an “Internal Server Error 500” when I want to add a Channel.
I also tried to restart the system, which didn’t worked also.

Anyone an idea what I can try?

Thanks a lot

  • Platform information:
    • Hardware: RPi 3B+
    • OS: Openhabian
    • Java Runtime Environment: which java platform is used and what version
    • openHAB version: 2.5.0
  • Issue of the topic: please be detailed explaining your issue
  • Please post configurations (if applicable):
    • Items configuration related to the issue
    • Sitemap configuration related to the issue
    • Rules code related to the issue
    • Services configuration related to the issue
  • If logs where generated please post these here using code fences:

Solved it that way:

  1. openhab-cli stop
  2. openhab-cli clean-cache
  3. openhab-cli start
    (All commands with sudo)

Then I got the following error in openhab.log periodically:
> 16:08:05.776 [ERROR] [ge.internal.WriterInterceptorExecutor] - MessageBodyWriter not found for media type=text/event-stream, type=class, genericType=class

After a final reboot this error also has gone