Hello,

I'm new to DNN module development. I have created a new project in VS2010 and created a test.aspx page that I put my user controls into to run and test locally. When I install that package in DNN, it installs fine and produces no errors. However at run time, I get an error...I have no idea how to debug this within the DNN framework...is it only possible if I have a dev environment that has the entire DNN source in it?

Here is the error:
ModuleId: 1091
ModuleDefId: 242
FriendlyName: My Garage
ModuleControlSource: DesktopModules/Incite/MyGarage.ascx
AssemblyVersion: 5.5.1
PortalID: 0
PortalName: TheDynoRoom.com
UserID: 1
UserName: host
ActiveTabID: 453
ActiveTabName: Test Module 2
RawURL: /dynodnn/TestModule2.aspx
AbsoluteURL: /DynoDNN/Default.aspx
AbsoluteURLReferrer: http://localhost/dynodnn/TestModule2.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; GTB6.6; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; OfficeLiveConnector.1.5; OfficeLivePatch.1.3; .NET4.0C; .NET4.0E)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 9dd7c714-a0d8-4476-8abe-d1b835cd120f
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl
StackTrace:
Message: 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() --- End of inner exception stack trace ---
Source: 

Thanks for the reply Cathal. Unfortunately I am using VS2010 Express, which I believe doesn't let me attach to processes with the debugger. I tried tried setting up my development environment with the source version of DNN but am struggling with that too as it is running into issues attempting to load several of the sub-projects. Is there any other way to debug a custom module in DNN without having to do it within the context of the full DNN source?

Well I got past that prior error by making my control inherit from portalmodulebase: Inherits Entities.Modules.PortalModuleBase Now I get this one: Any suggestions? AssemblyVersion: 5.5.1 PortalID: 0 PortalName: TheDynoRoom.com UserID: 1 UserName: host ActiveTabID: 453 ActiveTabName: Test Module 2 RawURL: /dynodnn/TestModule2.aspx AbsoluteURL: /DynoDNN/Default.aspx AbsoluteURLReferrer: http://localhost/dynodnn/Blog.aspx UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.2) Gecko/20100316 Firefox/3.6.2 ( .NET CLR 3.5.30729; .NET4.0E) DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider ExceptionGUID: a3384358-9eaa-458c-ac3f-0ee910af8a71 InnerException: Conversion failed when converting from a character string to uniqueidentifier. FileName: FileLineNumber: 0 FileColumnNumber: 0 Method: System.Data.SqlClient.SqlConnection.OnError StackTrace: Message: DotNetNuke.Services.Exceptions.PageLoadException: Conversion failed when converting from a character string to uniqueidentifier. ---> System.Data.SqlClient.SqlException: Conversion failed when converting from a character string to uniqueidentifier. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlDataReader.HasMoreRows() at System.Data.SqlClient.SqlDataReader.ReadInternal(Boolean setTimeout) at System.Data.Common.DataAdapter.FillLoadDataRow(SchemaMapping mapping) at System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) at System.Data.Common.DataAdapter.Fill(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataTable dataTable) at MyGarage.PopulateRootLevel() at MyGarage.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- Source: