I am upgrading from 7.0.5 and I'm having problems with my custom registration page.  I created one back when the spam account registrations was a problem.  I tried upgrading to various versions up to 7.3.4, but my custom registration page never works after upgrade.  You enter information, click "add user" and it spins for a second, then...nothing.  It's never redirects.  Users are never created.  Nothing in the event log.  I'm not sure how to troubleshoot this.

 I've tried the built-in registration with no luck.  I tried creating a new registration page with no luck. I tried just a very small incremental upgrade (7.1.2) and it's the same issue.  I left it at 7.1.2 because I want to get this working before jumping up to 7.3.4 or 7.4.x.

OK, another issue...maybe related? I can't get into Site Settings.

Error: Site Settings is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: d:\inetpub\wwwroot\dnn\DesktopModules\Admin\Portals\SiteSettings.ascx.cs(594): error CS1502: The best overloaded method match for 'FriendlyUrlSettings.FriendlyUrlSettings(DotNetNuke.Framework.Providers.Provider)' has some invalid arguments ---> System.Web.HttpCompileException: d:\inetpub\wwwroot\dnn\DesktopModules\Admin\Portals\SiteSettings.ascx.cs(594): error CS1502: The best overloaded method match for 'FriendlyUrlSettings.FriendlyUrlSettings(DotNetNuke.Framework.Providers.Provider)' has some invalid arguments at System.Web.Compilation.BuildManager.PostProcessFoundBuildResult(BuildResult result, Boolean keyFromVPP, VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetBuildResultFromCacheInternal(String cacheKey, Boolean keyFromVPP, VirtualPath virtualPath, Int64 hashCode, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultFromCacheInternal(VirtualPath virtualPath, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean ensureIsUpToDate) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at DotNetNuke.UI.ControlUtilities.LoadControl[T](TemplateControl containerControl, String ControlSrc) at DotNetNuke.UI.Modules.ModuleControlFactory.LoadModuleControl(TemplateControl containerControl, ModuleInfo moduleConfiguration) at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() --- End of inner exception stack trace ---

Thank you for the reply.

I'm not sure I follow what you are suggesting. How to I unblock the upgrade package?

Here is what I did:
1. Extract upgrade zip to temp folder
2. Copy files into DNN folder
3. Selected to overwrite all files - completed without errors
4. Ran the upgrade wizard