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SQL Server Express Error

Posted on 2014-01-17
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Last Modified: 2014-01-22
I'm using SQL Server Express within Visual Studio 2010 for a C# application.  I established a connection to a database previously created using SQL Server Express within the Visual Studio 2005 environment.  I can view the data in 2010, but when I try to create a new table, I get the following error:

The specified module could not be found: Exception from HResult:0x8007007E

I can work around this error by using 2005 to modify the database, but would like to resolve the issue with 2010.

Thanks.
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Question by:l2Bravo
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Surendra Nath earned 2000 total points
ID: 39788997
It may have caused by the another installation of Visual Studio 2012 and then its un-installations.
Visual Studio 2012 changes the dsref80.dll located at :

    C:\Program Files (x86)\Common Files\microsoft shared\Visual Database Tools\

overwriting the older version. When it is uninstalled the dll remains though and since its version is newer and there is no more the version 10 , Visual studio 2010 generates an error. to resolve this problem all you need to do is to get the version 10 dll and place it in the mentioned path( a repair or re-installation would do the trick).

In short, please do a re-installation of your VS 2010 and see the issue should not happen at all.
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by:l2Bravo
ID: 39789239
OK.  Thanks. I had installed and then uninstalled Visual Studio 2012 at some point last year, so I will try a repair of Visual Studio 2010.  

Thanks.
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