I'm trying to install a windows service thro "InstalUtil" and it's refusing to register it with the ReflectionTypeLoadException Error (.Net Framework v4.5.50709).

Same service is getting registered fine when I install System.Web.Http in GAC using gacutil.exe but one of my other application is getting registered successfully without installing in GAC.

Here's the full quote:

System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

What I have tried: 

1. I have inserted my .dll in the same folder as my .exe (the debug). Copy Local is set to "True"
2. I rebuilt the project
3. I have tried copying/running the InstallUtil.exe into the same folder from the .Net Framework, no luck.

What steps am I missing here? Is there any way I can dig into the project and find out what is causing this?