Good Day,

I have been trying to figure out why my upgrades from 4.9.5 to 5.4.4 have been failing and now I find this error which is the same as is preventing my upgrade from completing successfully in the event logs of my production site.  Even with the stack trace I don't see specifically what might be causing this.  I would imagine that those more versed with the internals of DNN would be able to id this issue easily.  I'd very much appreciate the expertise and suggested course of action to rectify.

Best Regards,

Mike



AssemblyVersion: 04.09.05
PortalID: 0
PortalName:
UserID: -1
UserName:
ActiveTabID: 36
ActiveTabName: Home
RawURL: /Default.aspx?tabid=36&error=Value+cannot+be+null.%0d%0aParameter+name%3a+String&content=0
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/5.0 (compatible; MJ12bot/v1.3.3; http://www.majestic12.co.uk/bot.php?+)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 0c5caec0-dd15-4ad5-898c-f0bfd1ea8256
InnerException: Value cannot be null. Parameter name: String
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Number.StringToNumber
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Value cannot be null. Parameter name: String ---> System.ArgumentNullException: Value cannot be null. Parameter name: String at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at System.Web.Configuration.HttpCapabilitiesBase.get_MajorVersion() at Solpart.WebControls.SolpartMenu.BrowserSupportsFunctionality(ClientFunctionalityEnums eFunctionality) at Solpart.WebControls.SolpartMenu.DownLevelBrowser() at Solpart.WebControls.SolpartMenu.getBorderStyle(String type, String color, Int32 width) at Solpart.WebControls.SolpartMenu.getMenuBorderStyle(String shColor, String hlColor, Int32 width) at Solpart.WebControls.SolpartMenu.WriteCSSStyles() at Solpart.WebControls.SolpartMenu.Page_PreRender(Object sender, EventArgs e) at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Web.UI.Control.OnPreRender(EventArgs e) at DotNetNuke.Framework.PageBase.OnPreRender(EventArgs evt) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: IHOSTLLC12

dnn does browser detection. this just means that this particular bot, MJ12bot, is not defined in your browsercap.ini or oceanspiders.txt. This error occurs only if you are this bot and would not affect upgrading/installing dnn.