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In some cases, your system may display an error code indicating that debugging on the web server is not possible. This problem can be caused by a number of reasons. When you try to debug an ASP.NET software application running on a web server, you most likely receive this error message: “Unable to debug on web server.” Often the failure is due to a learning failure or change that requires updating application pools, configuring IIS, or both.
- 8 minutes to read.
How do I debug an IIS issue?
When you try to debug an ASP.NET software package running on a web server, you may receive the following error message: Unable to take into account debugging on web server
.
Often, a specific error occurs because of a bug or configuration change that requires an update to help you with application pools, resetting IIS, or perhaps both. You can reset IIS by reading an elevated command prompt and typing iisreset
.
What Is The Detailed Error Message?
The error that triggers debugging on the Internet Text Messaging Server
is common. Usually in the chain Errors have a more specific goal that can help you identify the factor causing the problem, or find the perfect and more accurate solution. Here are some of the more common error messages appended to the main error message:
- IIS does not list websites reading start URL
- The web server is not configured correctly
- Unable to connect to web server
- The web server did not respond in time
- The Microsoft Visual Studio Isolated Debug Monitor (msvsmon.exe) is not available on the remote computer
- The remote control returned an error for the device
- Unable to start ASP.NET debugging
- The debugger could not connect to the computer
- For more information, see Remote for common configuration errors. Running a separate debugger web page can provide new information.
- Operation not supported. Unknown error: error number
-
Use a browser to open the Remote Application Server Maintenance Console.Expand the server node type and click Application Server.Click Debug Service.Check the Start box.Click Apply, then save the configuration.Stop our own application server if it is running.Start seeing the application server.
As an effective administrator, restart Visual Studio and try debugging again. (Some ASP.NET debugging scenarios require elevated privileges.)
You can configure Visual Studio to always run as administrator by right-clicking the popular Visual Studio shortcut, choosing Properties> Advanced, and then choosing Run As Administrator As Always. p>
- See “The web server is not configured correctly “.
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Are you using Visual Studio and a remote web machine on the same machine and debugging with F5 instead of Attach to Process? Open your project properties and make sure most of the project is set up to connect to the correct web server and run the URL for you. (Open Properties> Web Server> Otherwise Properties> Debug, depending on your type of business. For a more open web forms project, open additional openProperties> Launch Options Pages> Server.)
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Otherwise, restart the application pool and then reset IIS. For more information, see checking IIS configuration .
- If you also reset IIS, try debugging again. You can attach multiple instances of the debugger to an IIS process; a reset completes it. For more information, see checking IIS configuration .
- If people are debugging a remote machine, make sure the remote debugger is installed and trained . If the message relates to a firewall, make sure the appropriate firewall vents are open, especially if you are using a third-party firewall.
- If you are using a HOSTS file, it is certainly configured correctly. For example, if you are debugging with F5 (instead of Attach to Process), the HOSTS file should help you include the same URL Res project to your project properties, Properties> Internet> Server or Debug properties> depending on the type of your project. >
- (403) Forbidden. There are many possible reasons for this error. So, find your log file and IIS security settings for the website. Make sure the server web.config file contains
debug = true
in some build item. Also, make sure your web application folder has the correct permissions and that the application pool configuration is real (the password may have changed). See Check your configuration iis. If these settings are already correct and you are debugging in your city, also make sure you are connecting to the marketplace with the correct server type and URL (under Properties> Web Server> or Properties> Debug, depending on the task type ). - (503) Server unavailable. The application pool may have stopped due to a bug or design change. Restart the application pool.
- (404) Not found. Make sure the application pool is usually configured for the correct ASP.NET version.
- Restart the application and reset IIS. For additional reports, see IIS Configuration Checker .
- If you are doing test URL rewriting at all, just use a simple web.config file without URL rewriting. See the note for the URL rewriting module under Check your IIS configuration .
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Are you using Visual Studio and a web server on your computer? Open your project properties and make sure you build the project
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IIS Does Not List Websites Associated With Start URL
Web Server Not Configured Error: Correct
Unable To Connect To Web Server
The Web Server Should Not Respond In Time
Visual Microsoft Professional Studio Remote Debugging Monitor (msvsmon.exe) Does Not Work On The Remote Computer
The Remote Server Returned An Error
Check your IIS log file for additional error codes and information. See this post on the IIS 7 blog .
How do I fix unable to start debugging on web server?
Also, here are some of the most common error codes and some suggestions.
Failed To Start ASP.NET Debugging
The Debugger Cannot Connect To The Remote Computer
On the property pages of almost any website or virtual web directory, look at the Home or Virtual Directory tab.In the Application Settings section, click Configuration.Click the Debug tab.Select the Enable ASP Server Side Script Debugging check box.
If you normally debug locally, open your project properties in Visual Studio and make sure it is configured to connect to the correct web server and URL. (Depending on the project type, open Properties> Web Server> or Properties> Debug.
Open the properties of your project and make sure that the project is configured for sub To the correct web server as well as the start URL. (Open Properties> Internet> Server or Properties> Debug, depending on the project type.) If this may not work, or if you are debugging remotely, follow the steps in the Verify your configuration IIS “.
This error occurs during local debugging because Visual Studio is a 32-bit application and therefore uses 64-bit versionthis selected debugger for debugging 64-bit applications. Check your application pool in IIS to make sure the “Enable 32-bit applications” option is set so that you can restart true
IIS and then try again.
Even if you are using a HOSTS file, make sure it is configured correctly. For example, how the HOSTS file should contain the old project url, as in your project properties, Properties> Internet> Server or Debug Properties> depending on your project type.