Hello Dhananjay,

Make sure that all referenced Nevron assemblies have the same version.
Also you can check whether you have any old Nevron assemblies left in the GAC. If you have any you need to delete them.
I hope this helps.

Best Regards,
Nevron Support Team

Is there any compatibility issue of nevron dlls with version 17.8.21.12 with framework 4.0 or visual studio 2012?

Every thing is set, All references are set to Nevron.Presentation and I am trying to build the project, but it shows the error "The type or namespace name 'NButton' could not be found (are you missing a using directive or an assembly reference?)"

Previously I am using Nevron dll of version 10.3.31.12, now I am trying to use latest version 17.8.21.12 is this a problem, I am trying to use it in Visual studio 2012 and DotNet Frame Work 4.

Please help me on this, refer to image below