How to set web.config file to show full error message

Question

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?

score 297 · Accepted Answer · edited Jan 21 '22 at 11:04

297

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"

edited Jan 21 '22 at 11:04

Uwe Keim

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answered Jul 26 '12 at 08:38

jim tollan

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In addition add the following in the < **System.webServer** > add – Kasper Jensen Sep 14 '16 at 06:21

score 167 · Answer 2 · edited Jun 23 '21 at 02:31

167

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>

edited Jun 23 '21 at 02:31

Leyla Zwolinski

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answered Nov 24 '16 at 05:19

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://learn.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
4

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

score 16 · Answer 3 · answered Jul 26 '12 at 08:47

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());
}

answered Jul 26 '12 at 08:47

Sandrino Di Mattia

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Would I have access to this **Global.asax.cs** file in a `plesk` environment? And where is that file located? The other suggestions are not working; and I need it for a sub-domain. – MeSo2 Dec 08 '22 at 18:45

How to set web.config file to show full error message

3 Answers3

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