Hi, 
     This might be something that just applied to my situation, but its another clue for this error.
     For anyone else that is creating custom modules. I ran into this error. I finally saw that in my WAP project, in the Components folder, I had renamed my SqlDataProvider.cs to 'MBSAnalysisSqlDataProvider.cs.  I was tired of having an SqlDataProvider.cs like everybody else. Bad Move on my part
     My DataProvider.cs blew up the next day at the DotNeNuke.Framework.Reflection.CreateObject() method. in my DataProvider class with this error .........


..     : The type initializer for 'MBSAnalysis.MBSAnalysisDataProvider ' threw an exception.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Activator.CreateInstance
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: The type initializer for 'MBSAnalysis.MBSAnalysisDataProvider' threw an exception. ---> System.TypeInitializationException: The type initializer for 'MBSAnalysis.MBSAnalysisDataProvider' threw an exception. ---> System.ArgumentNullException: Value cannot be null. Parameter name: type at System.Activator.CreateInstance(Type type, Boolean nonPublic) at DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectProviderName, String ObjectNamespace, String ObjectAssemblyName, Boolean UseCache) at DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectNamespace, String ObjectAssemblyName) at MBSAnalysis.MBSAnalysisDataProvider.CreateProvider() in C:\IQSys\iqDNN\DesktopModules\MBSAnalysis\Components\MBSAnalysisDataProvider.cs:line 45 at MBSAnalysis.MBSAnalysisDataProvider..cctor() in C:\IQSys\iqDNN\DesktopModules\MBSAnalysis\Components\MBSAnalysisDataProvider.cs:line 37 --- End of inner exception stack trace --- at MBSAnalysis.MBSAnalysisDataProvider.Instance() at MBSAnalysis.MBSAnalysisController.Get_GuestBooks(Int32 ModuleId) in C:\IQSys\iqDNN\DesktopModules\MBSAnalysis\Components\MBSAnalysisController.cs:line 50 at MBSAnalysis.ViewGBT.Page_Load(Object sender, EventArgs e) in C:\IQSys\iqDNN\DesktopModules\MBSAnalysis\Gbook\ViewGBT.ascx.cs:line 39 --- End of inner exception stack trace ---

            

InnerException