404 error after deploying to IIS

Question

Before deploying my ASP.net software to the production site (Windows server 2012 R2), I first test the software on a test server. If that is succesful, I deploy (copy) the exact same software to the production site.

On the production site, I got the following error when clicking on a link:

Warning, an 404 error has been detected: System.Web.HttpException (0x80004005): The file '/Account/Login.aspx' does not exist. at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal...

Note that the path '/Account/Login.aspx' was a part of the previous version of the deployed software. The path no longer exists in the current version.

I have tried to make a "clean-ip" by deleting the content in:

C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\Temporary ASP.NET Files\\root

but that did not help.

1. How do I find the root cause for the 404 error?

2. How do I prevent old stuff from previous versions of the deployed software from making trouble in the latest deployed version?

Answer 1

Thank you for trying to help me by adding comments to my question.

I have found that adding the following lines to 'web.config' file removes the error. I dont know why but the main thing is that it now works:

<appSettings>
....
<add key="ValidationSettings:UnobtrusiveValidationMode" value="None"/>
<add key="UserLockoutEnabledByDefault" value="true"/>
<add key="DefaultAccountLockoutTimeSpan" value="10"/>
<add key="MaxFailedAccessAttemptsBeforeLockout" value="3"/>