My environment is SharePoint 2010. I was working on some master page changes and accidently I opened default master from (C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\GLOBAL\default.master) in SharePoint designer for some reason it removes the "~/" from the path of following user controls

<%@ Register TagPrefix="wssuc" TagName="Welcome" src="~/_controltemplates/Welcome.ascx"   %>
    <%@ Register TagPrefix="wssuc" TagName="MUISelector"   src="~/_controltemplates/MUISelector.ascx" %>
<%@ Register TagPrefix="wssuc" TagName="DesignModeConsole" src="~/_controltemplates/DesignModeConsole.ascx" %>.

I opened my default master in notepad and corrected the path by adding the tilde and slash but still my master page is not loading properly and i get the "File Not Found error". In view source the error is "/_catalogs/masterpage/_controltemplates/Welcome.ascx does not exist"

Please help.

Best Regards Vivek

  • Even I tried to reset the master page back to site definition but it didn't help either.
    – V.B
    Feb 24, 2012 at 5:25
  • can you configure the web.config to display the detailed error? Make - <CustomErrors Mode="Off">, CallStack="true" and <compilation debug="true" /> and then refresh the site.
    – Deepu Nair
    Feb 24, 2012 at 8:29
  • yes i have these settings.it shows me error that welcome.acsx doesn't exist though its present physically.
    – V.B
    Feb 24, 2012 at 16:43
  • you wouldn't by any chance have the publishing feature enabled and be able to restore an earlier version? Also you mention you're working on a 2010 install, I would have thought that you would have been working with v4.master
    – pigeon
    Feb 24, 2012 at 23:04
  • Well I think default.master should be the culprit as all this started after opening it in SPD
    – V.B
    Feb 25, 2012 at 7:36

2 Answers 2


You have another copy of default.master under C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\Layouts\

Both files should be exactly the same, so copy the good one over the broken one.

  • Unfortunately this also dint work.
    – V.B
    Feb 24, 2012 at 16:34

You can use Reset to site definition option under Site Actions -> Site Settings -> Site Actions.. This will reset your site with default settings..

  • I did this but of no use.
    – V.B
    Feb 24, 2012 at 5:47
  • This would only reset it to the file definition.. which is broken.
    – Louis
    Feb 24, 2012 at 11:51

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