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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...DNN Restore IssueDNN Restore Issue
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6/27/2015 5:09 PM
 

I'm currently having an issue restoring a backup of a DotNetNuke site. I have the .bak file. Using Microsoft SQL Server Management Studio 2014, I try to restore the .bak file to a database. However, a message remains at the top of the window: "No backupset selected to be restored." When I attempt to check the contents of the .bak, I receive the following error: "Object cannot be cast from DBNull to other types. (mscorlib)"

After doing some research, the most common cause of this error is attempting to restore a newer version of SQL to an older version of SQL. The problem is that I am using SQL Server 2014, so this certainly cannot be the issue. Please help!!!

 
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6/27/2015 8:48 PM
 

You may have a corrupted backup or hit a glitch in the restore software.   I think this link might be worth looking at if you have not already.  It seems to offer a TSQL solution if it's a version compatibility problem.  

https://social.msdn.microsoft.com/Forums/sqlserver/en-US/2a812631-fb93-414c-aa9b-97198f07f376/restoring-database-from-bak-error-object-cannot-be-cast-from-dbnull?forum=sqldisasterrecovery

 
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6/28/2015 10:05 AM
 
Also, be aware that SQL Server does not just look at the product Major Version, but also the build number - you should try to apply latest Service pack and eventually Cummulative Upgrade package.

Cheers from Germany,
Sebastian Leupold (Microsoft MVP)

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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