After upgrading to 6.0 I first got an error saying:
CS0426: The type name 'MacroHandler' does not exist in the type 'CMS.GlobalHelper.MacroResolver'
App_Code\Global\CMS\CMSCustom.cs Line: 29
I tried commenting that line out which gave me an error on line 30 instead.
Commenting out line 30 as well made it possible to log in to Site Manager (I'm waiting for license keys so thats all I can do at the moment). Everything seems fine there except Dashboard which gives the following error on top:
[Error loading the WebPart 'WidgetActions']
Value cannot be null. Parameter name: virtualPath
And then the same error for each widget:
[Error loading the Widget 'EventLog']
Value cannot be null. Parameter name: virtualPath
Any idea what could have happened?