172

I deployed my MVC-3 application on windows Azure. But now when I am requesting it through staging url it shows me (Sorry, an error occurred while processing your request.). Now I want to see the full error message, by default it is hiding that because of some security reasons. I know that we can do this through web.config file. But how?

Kolappan N
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King Kong
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3 Answers3

284

Not sure if it'll work in your scenario, but try adding the following to your web.config under <system.web>:

<system.web>
    <customErrors mode="Off" />
    ...
</system.web>

works in my instance.

also see:

CustomErrors mode="Off"

Uwe Keim
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jim tollan
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154

This can also help you by showing full details of the error on a client's browser.

<system.web>
    <customErrors mode="Off"/>
</system.web>
<system.webServer>
    <httpErrors errorMode="Detailed" />
</system.webServer>
Leyla Zwolinski
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Meer
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    For more detail see [customErrors Element (ASP.NET Settings Schema)](https://msdn.microsoft.com/en-us/library/h0hfz6fc(v=vs.85).aspx) – stomy Oct 30 '17 at 16:58
  • See [httperrors](https://docs.microsoft.com/en-us/iis/configuration/system.webserver/httperrors/) – stomy Oct 30 '17 at 17:01
  • See [the difference between customErrors and httpErrors](https://stackoverflow.com/a/2481102/7794769) – stomy Oct 30 '17 at 17:05
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    This is better than the accepted answer bcuz most devs want to see the details instead of YSOD with no details. – Spencer Nov 30 '17 at 18:12
16

If you're using ASP.NET MVC you might also need to remove the HandleErrorAttribute from the Global.asax.cs file:

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
    filters.Add(new HandleErrorAttribute());
}
Sandrino Di Mattia
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