I had a working dnn v5.6.2 that I attempted to upgrade to v6.2. After a failure I restored the backup and tried upgrade to v6.0. That worked okay.
Then I tried the upgrade to v6.2 again. This time upgrade completed but I received an error on the step labeled "Executing Application Upgrades: 06.01.00 Error!". When I tried to "Return to site" I was again unable to open the site and received a stack trace error which I was unable to understand.
Next I restored the site back to the v6.0 and this time I tried to upgrade to the v6.0.2. This time the upgrade completed without error but, I was still unable to open the site. Again I was unable to understand the stack trace error but at least I think I have narrowed the problem down to current configuration and v6.0.2.
I was going to just try the upgrade to v6.1 but though I would try to get a reading on the stack trace errors I received before I go any further. Can anyone help me understand this error:
"
Server Error in '/' Application.
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Value cannot be null.
Parameter name: key
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: key
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentNullException: Value cannot be null.
Parameter name: key]
System.Collections.Generic.Dictionary`2.FindEntry(TKey key) +9597729
DotNetNuke.Entities.Portals.PortalSettings.GetPortalSettings(Int32 tabID, PortalInfo portal) +1507
DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabID, PortalAliasInfo objPortalAliasInfo) +115
DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) +2525
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
"
Many thanks to anyone caring to respond.
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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272