Mixed mode assembly in .NET 4

by

The best would probably be to recompile your class library for .NET 4.0 in Visual Studio 2010 (ie. opening up the project, converting it, and changing the target framework.)

If you can’t, or won’t, do that, then you can try adding the following to your app.config file for your .NET 4.0 application:

<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0"/>
</startup>

ie.

<?xml version ="1.0"?> 
<configuration> 
    <startup useLegacyV2RuntimeActivationPolicy="true">
        <supportedRuntime version="v4.0"/>
    </startup>
</configuration>

More Related Contents:

  1. What does ‘useLegacyV2RuntimeActivationPolicy’ do in the .NET 4 config?
  2. How can I run PowerShell with the .NET 4 runtime?
  3. Differences between Microsoft .NET 4.0 full Framework and Client Profile
  4. C++/CLI Mixed Mode DLL Creation
  5. .NET 4.0 has a new GAC, why?
  6. IDictionary in .NET 4 not covariant
  7. Mixed mode assembly is built against version ‘v2.0.50727′ of the runtime
  8. Change C++/CLI project to another framework than 4.0 with vs2010
  9. Maximum value of maxRequestLength?
  10. Why is the first WCF client call slow?
  11. .NET 4.0 build issues on CI server
  12. How are .NET 4 GUIDs generated?
  13. How to handle all unhandled exceptions when using Task Parallel Library?
  14. Troubleshooting .NET “Fatal Execution Engine Error”
  15. Windows SDK 7.1 Setup failure
  16. Differences between .NET 4.0 and .NET 4.5 in High level in .NET
  17. Why Tuple’s items are ReadOnly?
  18. Drag and drop a DLL to the GAC (“assembly”) in windows server 2008 .net 4.0
  19. Where can I find a TPL dataflow version for 4.0?
  20. WPF slow to start on x64 in .NET Framework 4.0
  21. Does the .Net Framework 4.0 Installer include the .Net Framework 3.5?
  22. Fake DbContext of Entity Framework 4.1 to Test
  23. Entity Framework: table without primary key
  24. how to use cookies with HttpWebRequest
  25. Truncate Decimal number not Round Off [duplicate]
  26. Creating threads – Task.Factory.StartNew vs new Thread()
  27. Going fullscreen on secondary monitor
  28. “Type not expected”, using DataContractSerializer – but it’s just a simple class, no funny stuff?
  29. Binding in a WPF data grid text column
  30. MetadataType problem

Leave a Comment