Question Installation/Upgrade to Kunena 4.0.7 fails on Joomla 3.4.7

I get the following error when upgrading to Kunena 4.0.7 on Joomla 3.4.7:



This error does not go away even after clearing the administrator cache and re-installing Kunena.

I was able to upgrade to Kunena 4.0.7 on another site on Joomla 3.4.6 however, and so to overcome the above error, I had to roll back the Joomla 3.4.7 update. After upgrading to Kunena 4.0.7 successfully I reinstalled the Joomla update and everything sees to work fine now.

I updated from joomla 3.4.5 to 3.4.7. that works.

after that I tried to update kunena from 4.0.5 to 4.0.7.
But I've got the same error like above.

I did some things:
- delete admin cache for kunena
- installed the 4.0.8 version that posted from a developer in the forum
- installed the joomla update again

But nothing works. Kunena forum is offline.

Hope somebody can help me!!!

Tom

try to go to administrator/index.php?option=com_kunena&view=install

and see if the installer runs.

If you have cb installed try to disable system - cb, install kunena, and enable it again.

I don't use CB.
I did reinstall an backup. I will try it later again.
Before I have to update the kunena template as well (9theme).

and I had the kunena 4.0.3 (not 4.0.5).

I will inform you.

there is a bug with sessions on j3.4.7. Try to cler session on admin tools. Or logout then login again on the backend.

One day later - it works.

I tried it again. Before I cleared the admin cache and start the install process again.
I don't know why, but it works.

thanks