Hi, I taken wsp file from client system and I installed that wsp file in my current system (IT_Backup.wsp) with the help of STSADM. Now when I creating a new site collection based on IT_Backup file, it is giving error as below. Feature '75a0fea7-3cc9-4c20-bf74-9bfa9fd5d614' for list template '1011' is not installed in this farm. The operation could not be completed

Hm, did you install all webapplications that the template is based on? Can you see what original template 1011? Try visiting this link on K2Underground http://www.k2underground.com/forums/p/8337/25150.aspx - it mentions "feature xxxx for list template yyyy not installed in this farm" as title.

Hi again, Read up here on Pako Simeonovs guide to Fixing feature {guid} for list template is not installed in this farm error

Hi Kishore, The client has the fabulous 40 app templates installed. The feature you are missing is the Help Desk List, Install the Fab40 templates to resolve this issue. You can find more info http://technet.microsoft.com/en-us/windowsserver/sharepoint/bb407286.aspx and download all 40 from http://www.microsoft.com/downloads/details.aspx?FamilyID=5807b5ef-57a1-47cb-8666-78c1363f127d... Cheers, -Ivan Ivan Sanders My LinkedIn Profile, My Blog, @iasanders.

Retracting, deleting, and reinstalling ApplicatonCore.wsp solved it I think. Thanks, Ivan. All the files were not needed.

Cool, no problem I am glad you have the issue resolved.. Cheers, -IvanIvan Sanders My LinkedIn Profile, My Blog, @iasanders.