I keep getting this error when trying to run my system
<system.web>
<customErrors mode="Off"/>
</system.web>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.html"/>
</system.web>
First of all, enable the details of this specific error message by putting the "customErrors" tag in your "web.config" file like this:
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Now you will get the exact error in your code and you can fix that specific error.
For security reasons, your code will not be shown in the browser for end user until you have not enabled CustomError mode="Off" in web.config file.
For security reasons .NET-Websites shows complete exceptions only, if you call them locally. To see the error message you have to choices:
Call the website through a browser on the Server (of course not possible, if you deploy to a Azure WebApp, but e.g. in a VM)
Add the first of your snippets (customErrors mode="Off") to your web.config. Then you'll see the complete exception even remotly over the network. My advice would be to set it back to the default setting after you've seen and fixed the error.
Related
I am trying to deploy in Azure WebApp service an ASP.NET Weforms.
The app runs fine locally, without any problem.
After build ends I got the error below error in web browser after i go to myapp.azurewebsites.net i
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".
Here is source of Web.config file
<?xml version="1.0"?>
<configuration>
<configSections/>
<connectionStrings>
<add name="constr" providerName="System.Data.SqlClient" connectionString="server=telendar.database.windows.net; database=TrackerDB;uid=telendar;password=*****;"/>
</connectionStrings>
<location path="Admin">
<system.web>
<customErrors mode="On"/>
<authorization>
<allow roles="Administrator"/>
<deny users="*"/>
</authorization>
</system.web>
</location>
<system.web>
<compilation debug="true" targetFramework="4.5.1"/>
<sessionState timeout="60"/>
<authentication mode="Forms">
<forms defaultUrl="~/Default.aspx" loginUrl="~/AuthUser.aspx" slidingExpiration="true" timeout="60"/>
</authentication>
<authorization/>
<pages controlRenderingCompatibilityVersion="4.0" validateRequest="true">
<controls>
<add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit"/>
</controls>
</pages>
</system.web>
</configuration>
You misunderstand the error message, it's telling you that your code crashed an unhandled exception and it's not allowed to show it ,it suggest you modifying the web.config to enable the details of the specific error message to be viewable on remote machines.
So what you need to do is recreate the error while you browse it on the server and then solve the problem.
However my suggestion is you could try to change your FrameWork maybe this will work for you.
If you still have other questions, please let me know.
I am trying to host WCF service in "hostgator". I want to set Trust level because I am getting security permission error.
When I set Trust Level in web.config, I am getting an error.
web.config:
<location allowOverride="true">
<system.web>
<compilation debug="true" targetFramework="4.5.2"/>
<identity impersonate="false" />
<authentication mode="None" />
<httpRuntime maxUrlLength="1024" relaxedUrlToFileSystemMapping="true"/>
<customErrors mode="Off"></customErrors>
<securityPolicy>
<trustLevel name="Full" policyFile="internal"/>
</securityPolicy>
</system.web>
</location>
Error:
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.
Can anybody suggest a way to solve this?
enter image description here
Per HostGator FAQ you must run in partial trust using their shared hosting:
No. The applications must be published in Medium Trust in order to run
on the Windows Shared Server.
You're not going to be able to use the SDK in a medium trust environment from what I've read. As Dynamics CRM 2016 expands its support for its REST API that may become an option for you.
Hey i have an mvc app that i have published in my azure server. I get an error when i try it in the server. In localhost in works fine. But in the server i get an error that looks like this
So my question is how can i remove that custom error. I want to see the error message that explains what the error is about?
i want the error message to be like this one
check if you have this line this line in your web config system.web area
<customErrors mode="Off" />
if you do change it to off and if not add it in
You can use web.config transform file (such as Web.Debug.config or Web.Release.config) and include the following section:
<system.web>
<customErrors mode="Off" xdt:Transform="Insert" />
</system.web>
The Web.config file will be transformed when you deploy to Azure. The transform does not occur locally.
Please find attached the error I am getting while trying to display a custom error message. My application ASP.Net 4 and uses IIS 7.5. HEre is my code in web.config.
</httpErrors>
You should have your this under system.web
<system.web>
<customErrors mode="On" redirectMode="ResponseRewrite" defaultRedirect="~/ErrorPages/WebError.aspx"/>
And this under system.webServer (one of a few options)
<system.webServer>
<httpErrors existingResponse="PassThrough"/>
Server Error in '/' Application.
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
I've looked through countless of previous questions and I haven't managed to get it working.
I've edited my web.config file and included a generated key at no success.
Web.config
<?xml version="1.0" encoding="utf-8"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<system.web>
<machineKey validationKey="E91A16E07A8D628F1F1397962336B0C63B6DC45B8EB3D16BBD5E5761DD8AE462C04C1CC215904FF0353E84EF8194B48682114C72CF8E10F5295E5ADF36DBC520" decryptionKey="EFA118DF00BFB8206F24A1BB4AF7D18FBD6A605B44789E9048D8127FFF950A09" validation="SHA1" decryption="AES" />
<httpRuntime />
<pages enableViewStateMac="true" />
<customErrors mode="Off" />
<compilation targetFramework="4.0" debug="true" />
<authorization>
<allow users="*" />
<deny users="?" />
</authorization>
</system.web>
</configuration>
This happens when I postback to another page!
Instead of using <form action="..."> to perform a cross-page post back, try changing your submit button to read <asp:Button runat="server" postbackurl="...">. Using the PostBackUrl property is the officially supported way to perform a cross-page post back, as it sets a flag in the request telling the destination page to ignore the __VIEWSTATE field.
The main problem lies in the Application Pool of your website.Configure your website to use the proper .NET Framework version (i.e. v4.0) under the General section of the Application Pool related to your website.
Under the Process Model, set the Identity value to Network Service.Close the dialog box and right-click your website and select Advanced Settings... from the Manage Website option of the content menu. In the dialog box, under General section, make sure you have selected the proper name of the Application Pool to be used.
Your website should now run without any problem.Hope this helps you overcome this error.