I'm going through this tutorial, and trying to load the dll I've created in the Server Manager Tool.
Basically it's what they have there, and I've tried both the dll built in release and debug mode using Visual Studio 2015 on Windows 7.
In fact, I downloaded the complete directory from GitHub, and built the sample project that was this exact same project, only I wanted to make sure I hadn't messed up any setting or anything, and tried loading it into ServerManager, got the same error.
You may want to also answer this here:
Any ideas? Thank you!