Error message for install of mqtt1 and astro1 bindings

[sihui]

@mebj

I have just installed and started Snapshot #816

Installed or upgraded?
Very strange error message …
Maybe this can help you too:

Oh2 addons after migration from b2 to stable

@chriscolden has the right solution. I see the same thing when running in Docker. You have to stop OH, delete the cache and tmp folders, then start OH again. Note that you will lose all of your PaperUI settings so if you are running a manual install I highly recommend using a text based configuration and avoid PaperUI as much as feasible (some bindings like zwave make complete avoidance impossible but if you change the name of the serial controller to something consistent all you need to do is r…