How do I get Effort to work with EntityFramework?

Question

OVERVIEW
Using Fitnesse with EF6, can't get Effort to start up. I've tried every trick in all the posts I can find.
All the posts say to either call 'RegisterProvider', or add a config section. Neither is working.

So far:
I have "Effort.Provider" in the DbProviderFactories section in machine.config. I have Effort.Provider showing up when I look at DbProviderFactories.GetFactoryClasses(); ProcMon shows that it is looking for and finding Effort.dll.

Result:
Any of

DbConnectionFactory.CreateTransient();   
Effort.EntityConnectionFactory.CreateTransient(connectionString);   
DbProviderFactory dataFactory = DbProviderFactories.GetFactory(dt.Rows[5]);   

throw

Effort.Exceptions.EffortException: The Effort library failed to register

Also tried:
"Effort.Provider" in the entityFramework section of Runner.exe.config but couldn't get that to work. Just crashed the app.
Uninstalling EF and Effort.EF6 and re-installing. No visible effect.
Calling Effort.Provider.EffortProviderConfiguration.RegisterProvider(); from a class constructor and various startup locations. Effort.Provider never showed up in DbProviderFactories.GetFactoryClasses();
With "Effort.Provider" in the DbProviderFactories section in app.config, it shows up in GetFactoryClasses just as well as machine.config.

Using:
Windows 10
.Net 4.6
VS 2016
EF 6.1.2 (although it says 6.1.3 is installed, not sure what that means)

Do I need to register a DLL or something? Nothing in the instructions about that.

More Details:
App.config

<configuration>
    <runtime>
        <loadFromRemoteSources enabled="true"/>
    </runtime>
    <system.data>
        <DbProviderFactories>
            <add name="Effort.Provider" invariant="Effort.Provider" description="Effort.Provider" type="Effort.Provider.EffortProviderFactory, Effort" />
        </DbProviderFactories>
    </system.data>
</configuration>

Answer 1

It looks like you need to register the "entityFramework" config section in the app.config file.

<configSections>
   <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
 <entityFramework>
   <providers>
      <provider invariantName="Effort.Provider" type="Effort.Provider.EffortProviderServices,Effort" />
    </providers>
 </entityFramework>

Then in your code create the Effort connection and pass it to your DbContext. If you don't already have a constructor that takes an object of type System.Data.Common.DbConnection, create one.

System.Data.Common.DbConnection connection = DbConnectionFactory.CreateTransient();
var context = new MyContext(connection);

I would also recommend setting a connectionString in your app.config. I believe the call to CreateTransient creates a connection for you, but if your code under test has code that creates another dbContext somewhere, Effort will look to the app.config to get that information. Below is an example that will create a transient database so that all operations completed in one test do not affect another test.

<add name="DefaultConnection" connectionString="Data Source=in-process;IsTransient=true" providerName="Effort.Provider" />