Monday, March 30, 2015

The following sites are using templates that are not yet supported after upgrade (or) Sites that rely on these templates cannot be upgraded at this time, preventing upgrade of this site collection



The following sites are using templates that are not yet supported after upgrade (or) Sites that rely on these templates cannot be upgraded at this time, preventing upgrade of this site collection

Issue: when we upgrade any site from SharePoint 2010 to SharePoint 2013 and that site contains custom site definitions, we face the issue.

Solution: Ensure to follow the steps below to resolve the issue.

1.   Both versions of the site definitions (14 and 15) need to be present  in respective hives at the time of performing upgrade. If either of them is not there then the above error will show up.

2.   Uninstall > Remove  and  Add > Install. This had removed the previous site definition files (one and template folder) from 14 hive and added latest files to 15 hive.
 


I hope the above information will help you to resolve the issue, in case of any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues, Thank you.
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