DNN Version 5.01.01 Source

I am a new developer of DNN, and am attempting to write my own module named 'import'.

I followed the step-by-step directions on creating a new, simple module on www.adefwebserver.com/DotNetNukeHELP/DNN_ShowMeThePages/Super_Simple1.htm

The first time I tried it, I named the module 'supersimple' as they instructed in the tutorial, and it works just fine.

The second time I tried it, intending on creating the actual Import module itself, I began running into these errors:

Error: Import is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() in C:\inetpub\wwwroot\ldondnn\Library\UI\Modules\ModuleHost.vb:line 262 --- End of inner exception stack trace ---

As far as I can tell, I followed the instructions the same way both times. The only way things could be going wrong is if DNN has a problem with me adding more than one module, or if it has a problem with the module name- I doubt it, but that's the only difference between the two modules I could find.