Thomas,
I have tried the upgrade because / after you informed us about the 9.1.1
upgrade on 
JOKE MODE ON
911 ? ... this is the EMERGENCY NUMBER ... I should have been more carefull
;-)).
JOKE MODE OFF
Best regards,
2017-03-03 15:34 GMT+01:00 Thomas Mortagne <thomas.mortagne(a)xwiki.com>om>:
  Would it be possible that you tried to upgrade your
wiki before I send
 this mail (so before I was done with main wiki upgrade) ?
 On Fri, Mar 3, 2017 at 3:32 PM, Thomas Mortagne
 <thomas.mortagne(a)xwiki.com> wrote:
  Could you tell me one is your wiki so I can look
at the log with the
 error you reported and get more details.
 On Fri, Mar 3, 2017 at 3:30 PM, Thomas Mortagne
 <thomas.mortagne(a)xwiki.com> wrote:
  That's weird, from what I can see all
CKEditor Integration JAR
 dependencies are installed on main wiki. Did you tried to upgrade it
 alone (not as part of the XWiki Enterprise upgrade) ?
 On Fri, Mar 3, 2017 at 3:25 PM, Ldm Public <ldmpub(a)gmail.com> wrote:
> Hi
>
> The error occurs (at least) on CKEditor Integration.
>
>
>
> Regards,
>
> 2017-03-03 13:58 GMT+01:00 Thomas Mortagne <thomas.mortagne(a)xwiki.com 
:
>>
>>> Which extension was it trying to upgrade/install when you got this 
error ?
 >>>
>>> Sounds like it's trying to install a JAR extension which is not
>>> already installed during main wiki upgrade.
>>>
>>> On Fri, Mar 3, 2017 at 1:11 PM, Ldm Public <ldmpub(a)gmail.com> wrote:
>>> > Hi,
>>> >
>>> > Error on 2d updgrading screen:
>>> > Access denied when checking [programming] access to [Main Wiki] for
 user
 >>> > [xwiki:XWiki.[USER]
>>> >
>>> > I have reported the upgrade.
>>> >
>>> > Bet regards,
>>> >
>>> > 2017-03-03 10:57 GMT+01:00 Thomas Mortagne < 
thomas.mortagne(a)xwiki.com>gt;:
 >>> >
>>> >> Hi everyone,
>>> >>
>>> >> 
myxwiki.org has been upgraded to XE 9.1.1. If you own a wiki 
hosted
 >>> >> there you should have a look
at the release notes for this version 
 at:
 >>> >>
http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/
>>> >>
>>> >> You should automatically get an upgrade wizard for your wiki when
 you
   > >> login as admin.
> >> For more details see the upgrade guide available at :
> >> 
http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Upgrade#
> >> HUpgradingwikidocuments
> >>
> >> To be notified of the 
myxwiki.org server upgrade you can follow
> >> myxwiki on twitter:
> >> 
http://twitter.com/myxwiki
> >>
> >> Thanks,
> >> -XWiki Community
> >>
>
>
>
> --
> Thomas Mortagne
> 
 --
 Thomas Mortagne 
 
 --
 Thomas Mortagne 
 
 --
 Thomas Mortagne