Cannot view ASP.NET application Errors in a browser even though web.config is setup with customer errors mode set to Off

The problem is related to your web.config file. It might not be well formed XML. I would recommend that you create a new web.config with only the following code in it:

<!-- Web.Config Configuration File -->

 

<configuration>

    <system.web>

        <customErrors mode="Off"/>

    </system.web>

</configuration>

When you re-run the aspx pages you will see that the error will be sent to the browser. The problem is basically because the web.config you currently have is crashing before it gets to the bit that tells is that the customerrors mode is set to off.

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