hi, i have version 2.5 (SVN) -- at least that's what it says on my K2 dashboard. When I try to install 2.5.4 I get:

-1 - An error has occurred.
Copy failed.

All the K2 directories under Permssions are writeable.

Any tips on how I should proceed? Would manual copying be the the right thing to do, or could that screw things up?

Please let me know.

all best
tench

Got the exact same problem here.
I have version 2.5.1 and tried to upgrade to 2.5.4 with no luck. The message I got back is:

JInstaller: :Install: Cannot find XML setup file
Path does not have a valid package.


In any case I downloaded it again to make sure nothing happened while getting the zip file.
I also uploaded it via FTP and called from "Install from Directory /path" option with the same result!

the xml file exist and I checked the content, all seems to be in order as an xml file! and that's the end of the line.
I really wonder what’s wrong. In the meantime I have successfully uploaded/installed other extensions letting me believe that all settings at the server are ok.

Can it be another extension within the K2 area that has made some changes and that for not allowing the upgrade to work properly?

any hint / help would be highly appreciated.