“Rename your object or delete the existing object”. Error

I hit another problem while I was doing the gradual upgrade. The site upgrade process was complaining that the site is already exists and stope the site upgrade process before get completed successfully with following error message.

An object of the type Microsoft.SharePoint.Administration.SPWebApplication named "RegionalServices_Pair" already exists under the parent Microsoft.SharePoint.Administration.SPWebService named "". Rename your object or delete the existing object.

I couldn’t find the object mentioned in the error message through STSADM tool. I was trying to delete it or trying to access the site through STSADM command with out any luck.

Finally I figure out the way to fix this problem through the Central Administration pages

• Open the Central Administration site
• Go to Application Manager
• Select Delete Web Application link
• Select the site mention in your error message
• Choose to delete the Content database and the IIS Web site
• Navigate to Site content upgrade status under Operation tab
• Rerun the site upgrade