People search not working, peopleresults.aspx page does not exist and people search webparts missing
User Permissions not working becuase in 2010 user “domain\username” but 2013 user “i:0#.w|domain\username”
Migrate from classic-mode to claims-based authentication in SharePoint 2013(http://technet.microsoft.com/en-us/library/gg251985.aspx)
Branidng custom theme in SharePoint 2013
branding masterpage is not applied.
-> delete the file using powershell script and upload again.
$lib = $web.GetFolder(“_catalogs/masterpage”)
$file = %lib.Files[“abc.master”]
Missing server side dependencies error
[MissingSetupFile] File [Features\abc.webpart] is referenced  times in the database[WSS-Content_xxx], but exists only under Microsoft.SharePoint.Foundation 2010 setup folder. Consider upgrading the feature/solution which contains this file to the latest version.
-> I decided to delete the feature using follow website.