使用健身，fitsharp和苗条与c#

我目前正在学习将fitnesse与C#一起使用的教程，http://schuchert.wikispaces.com/FitNesse.Tutorials.0.CSharp我目前被困住了，因为我的代码/他的代码没有按预期工作。我没有足够的知识来自己成功解决它。我的页面代码是：

!define TEST_SYSTEM {slim}
!define TEST_RUNNER {c:'Projects'fitsharp'Runner.exe}
!define COMMAND_PATTERN {%m -r fitnesse.slim.Runner, c:'Projects'fitsharp'fitsharp.dll %p}
!path c:'Projects'C_Sharp'Digital Video Recorder'Digital Video Recorder'bin'Debug'Digital Video Recorder.dll
!define COLLAPSE_SETUP {true}
!define COLLAPSE_TEARDOWN {true}
!|import|
|Digital Video Recorder|
!|Create Programs                                        |
|Name |Channel|DayOfWeek|TimeOfDay|DurationInMinutes|id? |
|House|4      |Monday   |19:00    |60               |$ID=|

其中 DLL 的路径肯定是路径。但是当我对此进行测试时，它会出现一个异常：

System.ArgumentException: String cannot have zero length.
   at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
   at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.LoadFrom(String assemblyFile)
   at fitSharp.Machine.Engine.CurrentDomain.LoadAssembly(String assemblyPath)
   at fitSharp.Machine.Engine.ApplicationUnderTest.Assemblies.AddAssembly(String assemblyName)
   at fitSharp.Machine.Application.Shell.Execute()
   at fitSharp.Machine.Application.Shell.Run(IList`1 commandLineArguments)

我一直在摆弄这个一段时间，但我似乎无法让它工作

!define COMMAND_PATTERN {%m -r fitnesse.slim.Runner, c:'Projects'fitsharp'fitsharp.dll %p}