Installing DNN 5, upgrading from DNN4, and I get this:

Compiler Error Message: BC30002: Type 'IDataReader' is not defined.

Source Error:

Line 62: 
Line 63:         Public MustOverride Sub AddHtmlText(ByVal moduleId As Integer, ByVal desktopHtml As String, ByVal desktopSummary As String, ByVal UserID As Integer)
Line 64:         Public MustOverride Function GetHtmlText(ByVal moduleId As Integer) As IDataReader
Line 65:         Public MustOverride Sub UpdateHtmlText(ByVal moduleId As Integer, ByVal desktopHtml As String, ByVal desktopSummary As String, ByVal UserID As Integer)
Line 66: 

Any idea what is going on here?  The site is defined as ASP.NET 2.0, and so on, so it should just work. 

I honestly don't remember which particular flavor of v4.  Been using it for some time.

This happened immediately I tried to start the page; didn't display anything except the error.  It had not gotten to the stage of actually running anything visible on the page.  As far as I know the sql server collation is set case insens.

I guess I will back rev it for the moment.

I got the exact same error when upgrading to 5.01 from 4.09 (I think).  This was totally a problem between the monitor and the keyboard!  Or as we used to call it, "Error #5 - Insufficient User IQ"!

I had an open comment line in the web.config file in the appSettings section.  Here is my error line, yours might be different.

  <!-- Connection String for SQL Server 2000/2005 - kept for backwards compatability - legacy modules
 

The next line was another commented line and started with <!-- which is not what it expected.

The other interesting thing is that the first error was the one you showed, then after trying a couple of other things, I got an error that pointed to the problem in web.config.

Good luck!

Rod
http://rod-claar.net
http://www.EffectiveAgileDev.com