Can't install addons ( bundle ) on OH 2.0.0 ; log error msg follows

Hi There !
can’t ask any bundle to install with the addons OH page; my network works perfectly
here is log message:

2017-09-22 12:19:24.221 [WARN ] [url.mvn.internal.AetherBasedResolver] - Error resolving artifact
OT: [Could not find artifact in openhab (]

What can I do?
Best regards

I would suggest to use the latest version (ie OH2.1) - there probably is no ‘nightly’ repo for an old version.