#2 bplusTest throws exception in v1.01

I imported and converted the project in C# (Visual Studio 2010). The conversion went well and the project builds fine. Once I run the test program, I get the following exception: "when walking found aa when expecting ab". The exception occurs on line 831 in the module bplusTest.cs.

I don't dare use the project until such a time that it runs cleanly in Visual Studio 2010/.NET 4.0.