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HomeHomeOur CommunityOur CommunityGeneral Discuss...General Discuss...Page Load Exception - Value cannot be null. Parameter name: StringPage Load Exception - Value cannot be null. Parameter name: String
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5/8/2009 4:29 PM
 
Gary Steiner


Joined: 11/30/2004
Posts: 133

I've been getting a ton of these errors in my EventViewer after upgrading to DNN 4.9.3.  They all seem to be caused by bots (but they are all strange bots, not Yahoo, Google, or Microsoft).  Here are some examples:

UserAgent: FollowSite Bot ( http://www.followsite.com/bot.html )
UserAgent: kalooga/KaloogaBot (Kalooga; http://www.kalooga.com/info.html?page=crawler)
UserAgent: Mozilla/5.0 (Twiceler-0.9 http://www.cuil.com/twiceler/robot.html)
 

It's a shame the error log doesn't record the ip address of the bot that is hitting the site so it could be blocked.

Anyone have any idea what is causing this and how to prevent/fix it?

 
 
New Post
6/6/2009 3:35 PM
 
Gary Steiner


Joined: 11/30/2004
Posts: 133

Supposedly this was fixed in 4.9.4:

http://support.dotnetnuke.com/issue/ViewIssue.aspx?id=8892&PROJID=2

but I'm still experiencing the same error in 4.9.4.  Here are some of the crawlers that are causing it:

UserAgent: Mozilla/5.0 (compatible; KaloogaBot; http://www.kalooga.com/info.html?page=crawler)
UserAgent: Servage Robot ( http://www.servage.net/page/robot/ )
UserAgent: Mozilla/5.0 (Twiceler-0.9 http://www.cuil.com/twiceler/robot.html)
UserAgent: FollowSite Bot ( http://www.followsite.com/bot.html )
 
 
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6/30/2009 6:05 PM
 
Gary Steiner


Joined: 11/30/2004
Posts: 133

I assume that even though this problem was not fixed in 4.9.4, we will not see a 4.9.5 that fixes it.

I guess I can also assume that this problem does not exist in DNN 5.x.

 
 
New Post
6/30/2009 6:33 PM
 
Bill Haberkam

Joined: 4/20/2008
Posts: 68

Doesn't appear to be fixed in 4.09.04??  My eventlogs are overrun with these messages, so much so that I can't even rely on them for reporting other issues :(

AssemblyVersion: 04.09.04
PortalID: 0
PortalName: JustCircuit.com
UserID: -1
UserName:
ActiveTabID: 36
ActiveTabName: Home
RawURL: /Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Baiduspider+(+http://www.baidu.com/search/spider.htm)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 4f8f8890-b254-4d7f-a9c0-6e6a7b4135a6
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:
 
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6/30/2009 7:09 PM
 
ron dyar

Joined: 6/19/2005
Posts: 23

Same here - our log is over run with this same basic thing:

UserAgent: Baiduspider+(+http://www.baidu.com/search/spider.htm)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 4f8f8890-b254-4d7f-a9c0-6e6a7b4135a6
InnerException: Value cannot be null. Parameter name: String

We just upgraded to 4.9.4, and also just changed skins to Nifos. I doubt the skin could be the problem, but that is about the same time we started to see this error.
 
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HomeHomeOur CommunityOur CommunityGeneral Discuss...General Discuss...Page Load Exception - Value cannot be null. Parameter name: StringPage Load Exception - Value cannot be null. Parameter name: String


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