StructureMap Exception Code: 202 No Default Instance defined for PluginFamily

Where's your bootstrapping for the IConfiguration concrete class?

I.e:

x.For<IConfiguration>().Use<Configuration>();

This problem was fixed by replacing ObjectFactory.Initialize with ObjectFactory.Configure and adding the assemblies in my project:

ObjectFactory.Configure(x =>
{
    x.Scan(scan =>
    {
        scan.LookForRegistries();
        scan.Assembly("MyAssembly");
        scan.Assembly("MyAssembly");
    });
});

I was seeing the same error. In my case, I had a typo in the implementation name, so the interface and implementation names did not match.

public class FooTypo : IFoo

Where I should have had:

public class Foo : IFoo

I was getting the same error message, but for a different reason. I had a class Foo that defined two constructors like so:

public class Foo : IFoo
{
    private Bar _bar;

    public Foo()
    {
       _bar = new Bar();
    }

    public Foo(Bar bar)
    {
        _bar = bar;
    }
}

and my StructureMap configuration was like so:

For<IFoo>.Use<Foo>();

I kept getting an error message like

202 No Default Instance defined for Bar

The problem was that StructureMap was trying to construct a Foo using the constructor that takes a parameter, instead of using the parameterless default constructor. I solved it using the answer in How to define a default constructor by code using StructureMap? like so:

For<IFoo>.Use(() => new Foo());