I've burned the candle on both ends trying to upgrade an instance of DNN to the latest version with no-avail! Hopefully, someone will be able to shed some light on the problem so I can move forward...
My test machine:XP SP3 .Net 3.5 installed
Current DNN Version: 4.9.0
Trying to upgrade to 5.1.1
SQL Version: 2005
Problems encountered:
First, I tried following Mitchel Sellers article on how to perform the upgrade and this was unsuccessful for me. The first items that I had to correct after moving all the upgrade files into the directory was major permission errors. I've never experienced this before doing an upgrade but I had to go through and set the permissions on each item that was moved into the website directory.
Next, when I ran the "install" via the URL "../install/install.aspx?mode=install" there were two errors stating that the Executing Application Upgrades did not go through - I think they were for 05.00.00 & 05.01.00 however 05.01.01 was Successful so I continued on...
Next error: "Object+reference+not+set+to+an+instance+of+an+object.&content=0" this can be seen in the URL. I read, in one of the many posts on the subject, that we need to update the version of the system,web.utility.dll used in the web.config file and then paste a copy of that .dll into the bin folder - I've done that and I still am getting an error.
The error I'm getting is unknow - I guess even to DNN because it doesn't want to display it. All I see on my screen is "DotNetNuke Error" with a link back to the default.aspx page.
Any help would be great!