Hi,
I buyed "JoomSEF 4" and installed with no problem in Joomla 3.3.6.
Then I buyed "K2 JoomSEF 4 Extension" but when I try to install I have the error:

Warning
Unable to detect manifest file
Message
Error installing COM_INSTALLER_TYPE_TYPE_SEF_EXT

What can I do ?
Thanks...

No reply?
I need Jomsef with K2 integration, otherwise it is useless for my site..

Hello,

unfortunately this forum category doesn´t serve to our customer´s question (with valid product license). Next time, please, send Support ticket which can be found in your Artio user account -> left panel -> Support.
As regards your problem:
Check if the following file exists:
/libraries/joomla/installer/adapters/sef_ext.php

If it doesn't, copy it there from /administrator/components/com_sef/adapters/sef_ext.php

That should fix the problem.

Many thanks,
I've copied sef_ext.php in /libraries/joomla/installer/adapters buh I have the same error...
I open a ticket in support...