Hello,
I am new to these forums, as I have a peculiar problem. When certain users visit one of my websites running DNN 5.02.01 using the latest Firefox for Windows, they are forwarded to an error page with the following string after my website name in the URL: error=Value+cannot+be+null.%0d%0aParameter+name%3a+String&content=0


The page just says "DotNetNuke Error" then "An error has occurred" twice.

I cannot reproduce the error with the same version of firefox, but my client has sent me screenshots confirming that he is experiencing it, and has had several of his customers report the same problem. Had him clear cookies, temp,etc but he still gets the error.

Below is a copy of what appears to be the corresponding event from Event Viewer:
AssemblyVersion: 5.2.1
PortalID: 1
PortalName: xxxxx
UserID: -1
UserName:
ActiveTabID: 112
ActiveTabName: Home
RawURL: /Default.aspx?tabid=112&error=Value+cannot+be+null.%0d%0aParameter+name%3a+String&content=0
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.14) Gecko/20110218 Firefox/3.6.14 ( .NET CLR 3.5.30729; .NET4.0E) SearchToolbar/1.2
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: b22840cb-6c24-4c65-bee3-64a9a8187546
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: xxxxx


Can anyone shed some light on what I might do to resolve this? I read somewhere to restart ISS, but this was unsuccessful.

Thank you for your time.

it looks like the skin of your site is using an old menu, which is causing the issue.

---

Cheers from Germany,
Sebastian Leupold

   

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