did that, same result.
yes got some errors like
018-05-28 16:44:42.026 [ERROR] [core.karaf.internal.FeatureInstaller] - Failed installing 'openhab-binding-gpio, openhab-transformation-RegEx, openhab-transformation-XSLT': Error restarting bundles:
Unable to acquire the state change lock for the module: osgi.identity; type="osgi.bundle"; version:Version="0.10.0.oh230"; osgi.identity="org.eclipse.smarthome.model.script.runtime"; singleton:="true" [id=139] STARTED [STARTED]
2018-05-28 16:44:49.664 [ERROR] [org.openhab.binding.gpio ] - FrameworkEvent ERROR - org.openhab.binding.gpio
But they may be the result of what I added to the addons.cfg.
Furthermore ofcourse the massive errors about not being able to find items and groups.
well, yes the problem is persisting.Dont seemuch use in reopening it in new thread.
Anyway, I sincerely appreciate your help, but I think I just go back to 2.2 and maybe, if I feel like it in future, will do a clean install of 2.3 and just copy my sitemap and itemfiles, see how that goes.
Just a small addition… you might be on to something with errors in my itemsfile. Eventhough I rechecked with eclipse smartdesigner and saw no errors and eventhough they never gave me problems in 2.2… I recreated a small itemsfile containing some of the missing groups and items…and those started to pop up. So lets see what I can do with copying parts of the one file to another and see where it goes bust.
Anyay, again thanks for yr help