Troubleshooting!

1. m_safeCertContext is an invalid handle

I got this issue when try to assign a X509SigningCredentials to the custom STSConfiguration.

this.SigningCredentials = new X509SigningCredentials(cert);

Solutions:

Make sure don’t call cert.Reset() before passing the cert to X509SigningCredentials constructor

2. Keyset does not exist

Solutions:

http://stackoverflow.com/questions/602345/cryptographicexception-keyset-does-not-exist-but-only-through-wcf

http://msdn.microsoft.com/en-us/library/aa702621.aspx

3. A potentially dangerous Request.Form value was detected from the client (wresult=”<trust:RequestSecuri…”).

Solutions:

Make sure you have this setting in your web.config (under system.web)

<httpRuntime requestValidationMode="2.0"/>

http://social.msdn.microsoft.com/Forums/en-US/Geneva/thread/b6428ea6-e705-4c66-a6fe-8e9f51f73311

http://volkanuzun.com/blog/post/2010/10/14/A-potentially-dangerous-RequestForm-value-was-detected-from-the-client-(wresult3d3ctrustRequestSecuri).aspx

ASP.NET Error pages

That is interesting that my previous post talked about error pages in asp.net and yesterday I got this (see image below) when I tried to access blackberry online shopping site

That is good to know that this website is built using ASP.NET MVC, WCF and a Controller-Service-Repository pattern, so instead of disappointed cause the website crashed, I felt like this is built by some of my “friends”

PS: the good news is it was fixed right after that!

404 on MVC

If you are running IIS 7.x, there is a very simple solution to handle 404 (Page Not Found). I found this solution from

http://stackoverflow.com/questions/619895/how-can-i-properly-handle-404-in-asp-net-mvc/7967759#7967759

<system.webServer>
<httpErrors errorMode="Custom" existingResponse="Replace">
<remove statusCode="404" />
<error statusCode="404" responseMode="ExecuteURL" path="/Error/PageNotFound" />
</httpErrors>
</system.webServer>

Crystal Reports 64 bits issue

The error below happen on a 64 bits web server that tries to load the crystal reports run-time. If this sounds familiar with you and you already installed the “CRRedist2008_x64.msi”.  But it still didn’t work and you starting to get tired with google

You should look into your application pools settings, make sure you set the “Enable 32 bits Applications” to FALSE