Question

I am trying to deploy an CLR TVF (table value function). In the code I am using JavaScriptSerializer to parse some JSON string, so I reference the System.Web.Extensions dll and my problems start there.

Project builds fine, but when I try to register the dll I receive the following error:

Assembly ‘my_assembly_name’ references
assembly ‘system.web.extensions,
version=4.0.0.0, culture=neutral,
publickeytoken=31bf3856ad364e35.’,
which is not present in the current
database. SQL Server attempted to
locate and automatically load the
referenced assembly from the same
location where referring assembly came
from, but that operation has failed
(reason: 2(The system cannot find the
file specified.)). Please load the
referenced assembly into the current
database and retry your request.

I referenced system.web.extensions from:

C:\Program Files (x86)\Reference
Assemblies\Microsoft\Framework.NETFramework\v4.0\System.Web.Extensions.dll

I can set copy load to true or manually copy the assembly but then referencing errors go deeper –

Assembly ‘my_assembly_name’ references
assembly
‘system.servicemodel.activation,
version=4.0.0.0, culture=neutral,
publickeytoken=31bf3856ad364e35.’,
which is not present in the current
database. SQL Server attempted to
locate and automatically load the
referenced assembly from the same
location where referring assembly came
from, but that operation has failed
(reason: 2(The system cannot find the
file specified.)). Please load the
referenced assembly into the current
database and retry your request.

Everything works fine until I reference the Web.Extensions.dll. Target Framework is .NET 4.

Any ideas/solutions?

Answer 1

Sadly integration of the .NET Framework CLR with SQL Server 2005 / 2008 is only a limited subset of the framework and the System.Web.Extensions doesn’t seem to be a supported assembly / namespace.

For a full list of supported assemblies check out MSDN: http://msdn.microsoft.com/en-us/library/ms403279.aspx