Crystal Report Creation Error in dll Project

I am getting one error specifically in a project which is build as a dll.

The below is the error.

Could not load file or assembly 'file:///C:\Program Files\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86\dotnet1\crdb_adoplus.dll' or one of its dependencies. The system cannot find the file specified.

The windows project showed the same error, i have added the lines,

<startupuseLegacyV2RuntimeActivationPolicy="true"><supportedRuntimeversion="v4.0"sku=".NETFramework,Version=v4.0"/></startup>

in the app.config, and the error resolved.

Even adding the above lines in the config file of the dll and uses some other wpf project, the error is not getting resolved.

Please some one help me...

Thanks in advance..