Hi,
I have upgraded a Visual Studio 2008 solution to VS 2010, but leaving
the target Framework at 3.5. The application references
Microsoft.SQLServer.ManagedDTS.dll which ships with SQL Server 2008 (I
am using version 10.0.1600.22 of this DLL).

If I try to compile the application I get the following compiler warning
in the output window, followed by lots of errors as it cannot find the
namespaces referenced in the source code:

Warning 2 The primary reference "Microsoft.SQLServer.ManagedDTS,
Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91,
processorArchitecture=MSIL" could not be resolved because it has an
indirect dependency on the .NET Framework assembly "mscorlib,
Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
which has a higher version "2.0.3600.0" than the version "2.0.0.0" in
the current target framework.

....followed by various related compilation errors.

If the target framework is changed to 4.0, the application compiles and
works normally, however .NET 4.0 is not available in our hosting
environment and the application compiled and worked perfectly under .net
3.5 when compiled by VS 2008. Therefore it seems the error message
generated by the compiler is incorrect.

This problem has also been raised by others on the MS Connect site:
http://tinyurl.com/y4uzwoz

Any ideas how I can fix or workaround this problem?

Thanks
Nick

Nick Gilbert wrote:
> I have upgraded a Visual Studio 2008 solution to VS 2010, but leaving
> the target Framework at 3.5. The application references
> Microsoft.SQLServer.ManagedDTS.dll which ships with SQL Server 2008 (I
> am using version 10.0.1600.22 of this DLL).
>
> If I try to compile the application I get the following compiler
> warning in the output window, followed by lots of errors as it cannot
> find the namespaces referenced in the source code:
>
> Warning 2 The primary reference "Microsoft.SQLServer.ManagedDTS,
> Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91,
> ...

Is there any significance in the warning containing a different version
number for your dll than the one you're intending to use?

--
Andrew

On 21/04/2010 09:31, Andrew Morton wrote:
> Nick Gilbert wrote:
>> I have upgraded a Visual Studio 2008 solution to VS 2010, but leaving
>> the target Framework at 3.5. The application references
>> Microsoft.SQLServer.ManagedDTS.dll which ships with SQL Server 2008 (I
>> am using version 10.0.1600.22 of this DLL).
>>
>> If I try to compile the application I get the following compiler
>> warning in the output window, followed by lots of errors as it cannot
>> find the namespaces referenced in the source code:
>>
>> Warning 2 The primary reference "Microsoft.SQLServer.ManagedDTS,
>> Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91,
>> ...
>
> Is there any significance in the warning containing a different version
> number for your dll than the one you're intending to use?
>

That comes up even if I remove the reference and re-add it. I'm not sure
why it's different to the version number I get if I look at the
properties of the file.

Nick