I have a pretty extensive site with a few modules installed. I had tried in the past to upgrade to 5.0 but it failed so I just stayed where I was but now am trying to upgrade to 5.2.1 and same problems have come back. I just can't get past it and the site is SOOO darn slow under 4.9. I am truely regretting the day I every decided to try use DNN (web development on eggshells if you ask me!) but anyway now I am stuck with it and have to try fix this, or upgrade it to try make it work better.

Below is the error message. Any ideas what the deal is ??

Compiler Error Message: BC30451: Name 'FormatVersion' is not declared.

Source Error:

Line 88:                 If Not strProviderPath.StartsWith("ERROR:") Then
Line 89: 
Line 90:                     Response.Write("<h2>Version: " & FormatVersion(DotNetNukeContext.Current.Application.Version) & "</h2>")
Line 91:                     Response.Flush()
Line 92: 

It is hosted on the Rackspace cloud and is running .Net 3.5 and MSSQL 2008. 

any other ideas ?

I've tried removing all modules but same error.

 Thanks John. 

The errors appear to be because of the 15+ 3rd party modules installed in the installation.

I duplicated the working installation and tried removing all the modules from it, then doing the upgrade and still had all sorts of errors. I tend to agree with you, that something is wrong before I even started the update.

I also tried a clean install of the 5.2.1 and then changed the database to point to the old one and let it perform it's upgrades but again had a bunch of errors and got no where. Errors like a looping "undefined...Success" and many others mentioned in all the forums here.

I have had the closest success with a fresh clean installation, adding all the version 5 3rd party modules again. Then I created a portal template with data in the old site and created a new portal in the new clean site, selection that template. Most of the stuff was there but now I have no ADMIN menu. I have the HOST menu but everything to do with the Admin menu is grayed out of the top. So I cannot do anything. Cannot create or edit pages or anything.

So back to square 1. I think the only way is to start all over again and manually copy and paste everything into the new site.

Unless someone else has an idea ? Has anyone actually managed a success upgraded of a  4.x site to 5.x ?

Sorry for the comments about DNN but my frustration levels are though the roof. I understand everyone is really trying to help and I appreciate it. I guess these issues are the price you pay for open source.

Thanks again

Chris