Hi

I've just tried to upgrade from 4.5.5 to 4.8.2 and I get this error:

Could not load type 'DotNetNuke.Security.Authentication.AuthenticationController' from assembly 'DotNetNuke, Version=4.8.2.0, Culture=neutral, PublicKeyToken=null'.

[TypeLoadException: Could not load type 'DotNetNuke.Security.Authentication.AuthenticationController' from assembly 'DotNetNuke, Version=4.8.2.0, Culture=neutral, PublicKeyToken=null'.]
   DotNetNuke.HttpModules.AuthenticationModule.Init(HttpApplication application) +0
   System.Web.HttpApplication.InitModules() +267
   System.Web.HttpApplication.InitInternal(HttpContext context, HttpApplicationState state, MethodInfo[] handlers) +1251
   System.Web.HttpApplicationFactory.GetNormalApplicationInstance(HttpContext context) +243
   System.Web.HttpApplicationFactory.GetApplicationInstance(HttpContext context) +106
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +214

Anyone know what this is and what I can do?

Cheers

Mark

Thanks Jeff

I'm working on it locally, installed .net 3.5 and also installed ajax 1.0 just in case but no joy. this initially happened where I host the site, so I reverted it back to 4.5.5 and then downloaded it so I could try and upgrade locally, so not to sure where to go next. Any ideas?

Ah ha! Just got it to work, don't exactly know how but think it may have been something to do with the web.config.

I reverted back to the 4.5.5 version then copied the installation version of 4.8.2 over that installation along with the web.config file, replaced the machine key with my old one updated the database settings and it went ahead and upgraded no probs.

Might be handy to know in case this happens to someone else.

Cheers

Mark