I decided to upgrade an old ork project to unity 5.5.2 and latest Ork Framework version.
I get a grey screen when trying to start Ork Framework and an error:
ReflectionTypeLoadException: The classes in the module cannot be loaded.
System.Reflection.Assembly.GetTypes () (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/Assembly.cs:371)
ORKFramework.Formulas.Steps.FormulaStepHelper.AddFromAssembly (System.Reflection.Assembly assembly, System.Collections.Generic.Dictionary`2& list)
Can't really find anything that could cause this and I have googled quite a bit too. None of what I saw helped in this case.