Hi,
We are doing a migration from SharePoint 2010 to SharePoint 2013 and we are interested in migrating our custom solutions especially master pages and page layouts.
We have followed the steps as mentioned in TechNet for the database attach upgrade process. After doing database attach and running visual upgrade our sites work fine only if the custom solutions are deployed to 14 hive. If we have the solution deployed to 15 hive and not in 14 hive we get a File not found error for master pages and page layouts.
We can see all the files listed in the gallery but trying to open them or trying to download a copy throws File not found. This works fine if we have our custom solution deployed to 14 hive but not when it is in 15 hive.
Any guess as to how we can update our old master page and page layouts to be read from 15 hive and not from 14 hive.
We need to keep our customizations in 15 hive so that we can easily add new features post migration and make full use of the new 2013 capabilities post migration.