the file does not contain any valid add-ins

Content

Hello All!!

I'm deveopment my first add in .NET application.

I follow all steps from file: connect_addin_framework_getting_started_guide.pdf

 

But, in the last step, when I try to add the add-in (login like admin), I browse the dll file, end the system show the message:

"the file does not contain any valid add-ins"

and don't add the add-in.

What's wrong?

Thanks a lot

Maria