VS2010 error: Unable to start debugging on the web server

Question

I get error message \"Unable to start debugging on the web server\" in Visual Studio 2010. I clicked the Help button and followed the related suggestions without success.

Answer 1

I don't have a definite answer though these articles may have some helpful info:

Using Windbg to start with w3wp.exe This mentions windbg/cdb debuggers specifically, but this advice should work with Visual Studio talking to cdb (which is attached to w3wp).

Remote debugging with Visual Studio The reason I mention remote debugging at all is that I had to use that a few times in the past to get Visual Studio to attach to w3wp.exe. W3wp.exe runs in a different session, so you can't directly attach a debugger to that.

Answer 2

You have not mentioned what operating system you are using. But this might not be related to operating system. I am taking a guess here. If you are running on Windows 7, try running visual studio under Administrator previlages.

You can also try adding your user ID to the VS debugger users group. You can access user groups by reight clicking on computer name or my computer and selecting Manage. Under that you can find Users & Groups.

Answer 3

In my case it was the system.webServer > httpErrors > errorMode in the web.config that caused the problem.

If you have errorMode="Custom" try this:

<httpErrors errorMode="DetailedLocalOnly">

See this answer: https://stackoverflow.com/a/15585629/631277 for variations and other ideas concerning URL rewriting

Answer 4

Did you change your bindings on your IIS website? If so, you need to go to your project properties, select the Web tab, and change the Project Url to match your binding. so where it says http:///yourwebsite change it to http:///yourwebsite

This worked for me.

Answer 5

I had same issue with Visual Studio 2013. In my case I had removed the "Default Web Site" from IIS. To resolve the issue I created the default website again, set physical path to C:\inetpub\wwwroot and port to 80 (default port). After restarting the Visual Studio it worked perfectly. Hope it helps someone.

Answer 6

Check whether the msvsmon.exe (Visual studio Remote Debugging Monitor) file is existing in the below path: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Remote Debugger\x64

If the file does not persist on the above mentioned path,then you need to get it from any other machine which is having the same version of Visualstudio.