I keep getting this when I try hit the link of a website I just deployed to the web host's server:
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
It Suggests I set the following in my web.config file so I can see details of the error:
The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's configuration tag to point to a custom error page URL.
So I have added the following to my webconfig file and created a mycustompage.htm relative to the web.config file:
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
My mycustompage.htm is empty, is there anything I should add in there? When I try hit the link now all I get is a blank page after the server tries to redirect to mycustompage.htm.
Depending on what you're trying to accomplish:
1) You want to view the actual error information.
In this case, remove the defaultRedirect attribute and change mode to Off. Custom errors intercept the standard Yellow Screen of Death (YSOD) ASP.NET error page. By setting Custom errors to Off, the YSOD error message will be visible to both local and remote clients (all remote users will see the error details).
<configuration>
<system.web>
<customErrors mode="Off" />
</system.web>
</configuration>
2) You want to build a custom error page to handle how your application responds to error conditions.
In this case, you might edit the mycustompage.htm to display a friendly "An error has occurred" message rather than seeing the default Custom Errors are not enabled message.
Link here for reference.
Related
What is this for?
ASP.NET error suggested that I have to put this in my web.config file. What do these lines of codes do?
<system.web>
<customErrors mode="Off"/>
</system.web>
You can read about <customErrors> element here on MSDN.
Specifically:
Specifies that custom errors are disabled. The detailed ASP.NET errors
are shown to the remote clients and to the local host.
Custom Error
To customize the default error page, one will have to change the default configuration settings of the application
There are three error modes in which an ASP.NET application can work:
Off Mode
On Mode
RemoteOnly Mode
The Error mode attribute determines whether or not an ASP.NET error message is displayed. By default, the mode value is set to "RemoteOnly".
Off Mode
When the error attribute is set to "Off", ASP.NET uses its default error page for both local and remote users in case of an error.
On Mode
In case of "On" Mode, ASP.NET uses user-defined custom error page instead of its default error page for both local and remote users. If a custom error page is not specified, ASP.NET shows the error page describing how to enable remote viewing of errors.
RemoteOnly
ASP.NET error page is shown only to local users. Remote requests will first check the configuration settings for the custom error page or finally show an IIS error.
More Details and referred from here and this MSDN Site
i done my work on local. All pages of aspx is working properly but when i upload my website to remote server. i face this error ....
Runtime Error
Description: Failure of an application on the server. For security reasons, the current custom settings to prevent application failures remotely view more details about the error encountered. These details can be displayed in the browser but run locally on the server.
Details: To enable the display of the details of this specific error message on the remote server, create a tag in a configuration file "web.config" in the root directory of the current web. The "mode" attribute of the tag must be set to "Off".
<! - Web.Config Configuration File ->
<configuration>
<system.web>
<customErrors mode="Off"/>
</ system.web>
</ configuration>
Note: You can customize the error page by modifying the current attribute "defaultRedirect" application configuration tag to point to the URL of a custom error page.
Please tell me how can i remove this error and see my asp pages on internet browser.
You are getting some error that is not shown to you. You have to turn the customErrors mode to off or set RemoteOnly to see the error, you might be getting exception while accessing database. Once you know the error you can fix that error and set the mode to On again in customErrors tag in web.config.
<customErrors defaultRedirect="url" mode="Off">
<error statusCode="500" redirect="InternalError.htm"/>
</customErrors>
Who can help me with this?? I don't know what the hell to do at all. From begining to end I don't even know how to create a tag or nothing. help me? asap this is how it looks:
Server Error in '/HRX' Application. Runtime Error Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off".
Server Error in '/HRX' Application.
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
If you have remote access to the server then try to browse the page on the server locally.
Otherwise try to set customerrors mode to "Off" and deploy it.
<customErrors mode="Off"/>
If you do either way you will hopefully see a Exception StackTrace instead. That will probably give you a better clue of what that is wrong.
In addition to what others have said, it helps to install some sort of error handling capabilities. For a nearly plug and play solution, look into ELMAH (which can be installed easily with NUGET). This keeps a database of all the unhandled exceptions in your ASP.NET site and can even email you the error details when a problem is encountered.
Also, you'll want to set up a custom error page that explains to your users an unexpected error has occurred. This looks much more professional.
NOTE
I've determined the the problem I'm describing below is specific to an error enountered loading DLL files specified in the web.config file. I would like to present a user-friendly error even in the case of web.config errors.
END NOTE
When my ASP.Net application encounters a server error I would like it to present a custom error message to the user instead of the following default scary message.
Server Error in '/' Application.
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
I wrote a very simple HTML page and put it in the root of my application. It is called MaintenancePage.htm.
I've set my web.config file to the following:
<customErrors mode="RemoteOnly" defaultRedirect="MaintenancePage.htm">
<error statusCode="404" redirect="PageNotFound.aspx" />
</customErrors>
I've also tried ~/MaintenancePage.htm and http://[mysite]/MaintenancePage.htm. None of those options seem to work.
The way I'm testing this is to rename a DLL my project depends upon and then loading up the site in a web browser. I would expect that since there is an error and a defaultRedirect set there should be no problem showing the error page, however, I'm obviously wrong.
I've search around concerning this problem and it seem that most people are trying to redirect to an aspx page, and are encountering error with doing that. Many even report that they can't get the aspx page to load as a defaultRedirect, but they can get an html page to load.
What could I be doing wrong here?
I should note that I'm doing my testing from a different network outside the company firewall, so changing RemoteOnly to On is not the issue per the documentation. In testing changing RemoteOnly to On had no effect, as expected.
Change RemoteOnly to On.
RemoteOnly:
Specifies that custom errors are shown only to remote clients and
ASP.NET errors are shown to the local host
Also, your URL may be absolute or relative.
Read more about the customErrors settings
To watch it work locally:
<customErrors mode="On" defaultRedirect="/MaintenancePage.htm">
<error statusCode="404" redirect="/PageNotFound.aspx" />
</customErrors>
Easier way to test.
Try a bad url and watch your 404 error take over
Put this on your default.aspx page <% throw new Exception("gaah"); %>
And one other thing to consider: Error Logging. Can be achieved easily through ELMAH.
I've recentley moved my entire website from the root directory into a secure folder, but when I try to access it I now get a error: Runtime Error - Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine. Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's configuration tag to point to a custom error page URL.
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
Does anyone know what I'm doing wrong?
Set it to off to view the error (only if it's on a staging, non-production server). Remove the custom error page to see what's going on. Try and re-create the error on your dev machine first. You also have the option of logging or emailing the error stack to yourself.
Instead of moving the entire site to a "secure folder", implement some form of authentication for the pages you wish to protect.