Hi,

   Currently we are using SharePoint 2010 web application for our intranet purpose.

  In that web application, I am one of the site collection administrator have access across the site.

   I(as Site Collection administrator) trying to add another user as Site Collection administrator using Site Actions-> Site Settings-> Site Collection Administrators->From People picker dialog box. But I couldn't able to add it instead getting error

"An unexpected error has occurred".

Can anyone help me to find out the cause and ways to resolve this issue?

Regards,

Siva

Hi

please provide more details from LOG Files

(System Drive):\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\LOGS\

When looking into log files i found the below error,

Application error when access /_layouts/Picker.aspx, Error=Namespace prefix 'xsd' is not defined.

For that I added site in compatability view settings but still getting the error.

How to resolve this ?

Regards,
Siva

modify the pickerdialog.master file in C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\LAYOUTS and make a backup.

Now add emulation of IE 8 as shown below

<meta name="GENERATOR" content="Microsoft SharePoint" />
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />
....
</head>

Let us know the result.

Thanks Chen. It works for me.

Glad it worked. Cheers!

Thanks Chen. It worked for me.

Regards

Siva