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Recursive fallback not allowed for character \u003F any experiance with this error?

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6/23/2011 8:02:38 AM
Warner
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Recursive fallback not allowed for character \u003F any experiance with this error?

Looking for some help with:

2011-06-22 20:59:50,315 ERROR mojoPortal.Web.Global - ###.###.###.###-en-US - /
System.ArgumentException: Recursive fallback not allowed for character \u003F.
Parameter name: chars
   at mojoPortal.Web.UrlRewriter.UrlRewriter_BeginRequest(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

 

Woke up this morning to a flurry of emails, that my sire was down... and looking at the logs, i got the above error.  some googling makes me think its some how related to my host's set up?

 

Anyone else go thru this and have something I can help point the tech guys there at to figure how to get my site live again...

 

Only page that works in /default.aspx ( no re-writing needed so it seems to run fine... ) everything else... dies..

 

 

 

6/23/2011 11:19:45 AM
Warner
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Re: Recursive fallback not allowed for character \u003F any experiance with this error?

My site has come back online...

still waiting for the hosting company to provide info on why my site was basically down for 5+ hours...

Will update when I hear more ( if is it is useful ), i am skeptical i will get an informative answer...

 

6/23/2011 1:31:06 PM
Joe Audette
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Re: Recursive fallback not allowed for character \u003F any experiance with this error?

That is a strange error, I've certainly never seen it before. Could have been caused by some IIS module like the IIS url rewriter if they had some strange rule configured it would be altering the requested urls before they even got to the mojoportal url rewriter. Other than that I would have been looking in the database to see if somehow that strange character string had gotten into the data for the friendly url mappings. Probably was some IIS module configuration though that your host made not thinking it would break anything. I'd be interested to hear it if they do offer a good explanation.

Best,

Joe

6/28/2011 4:35:38 PM
Warner
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Re: Recursive fallback not allowed for character \u003F any experiance with this error?

Thx Joe~

As I thought... the host will not claim anything happened from their side. When I mentioned to check the IIS Modules and in particular any UrlRewriter modules. the only thing they said was:

"I just checked the server, the only IIS module that is installed which functions in this way (possibly) is IISPassword. That just lets you protect files with an .htaccess file instead of using windows authentication but it may play oddly with URLS."

Kind of a let down, the host had been decent at providing support up to this point... they kind of dropped the ball in helping figure things out.

Now I am stuck telling the CEO that we really don't know why everything went to hell that morning. Oh well won't be the last time I get stuck with something that isn't my fault :P

6/29/2011 6:12:10 AM
Joe Audette
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Re: Recursive fallback not allowed for character \u003F any experiance with this error?

With just a quick google for the error I found this article, of course there can be more than one possible cause of an error like this. It could have been something like your host upgrading their control panel software that caused it. It also sounds like it can result under some conditions when there is more than one ASP.NET application installed, like with one in the root and another in a sub folder. If it were some kind of conflict between 2 apps that specific problem could be mitigated by wrapping things in Web.config in a location element so it doesn't propagate settings from the root app down to the sub folder app. If you do have more than one .NET app installed and this error crops up again the links in our first FAQ item in the developer FAQ should help.

Best,

Joe

6/29/2011 8:35:36 AM
Warner
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Re: Recursive fallback not allowed for character \u003F any experiance with this error?

Yea, I had sent them that article. We only run the 1 Mojoportal site.

There control panel software was down at the same time... I had asked what the cause for panel being down..  no response.

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