Internet Information Services
Microsoft web server software.
1,637 questions
Try deleting the hidden folder .vs in the solutions directory. You cannot have the solution open when doing that.
How do I get Visual Studio 2019 to connect to IIS Express?
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Justin Hardin
6
Reputation points
Using the latest version of Visual Studio 2019 and opening the ASP .NET Core Web Application template, I try to run the default code without any changes, but I continually get and error message saying, "unable to connect to web server IIS Express". I tried everything from deleting the .vs folder, changing the application port number, restarting my computer, and uninstalling then reinstalling visual studio. I trying it again on another laptop and it worked flawlessly. I don't know what is special about my PC, but I need help. Both computers used Windows 10. My PC used Windows 10 pro and my laptop used Windows 10 home. attached is a screen shot of what I'm seeing.
Internet Information Services
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,651 questions
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Jaliya Udagedara 2,821 Reputation points MVP2021-12-02T09:34:12.037+00:00 Hmm, what you have already done should have resolved the issue. Did you try running VS as admin? and try clearing out the
%USERPROFILE%\Documents\IISExpress\configfolder -
Justin Hardin 6 Reputation points
2021-12-02T09:37:58.663+00:00 I've just tried both out and I still get the same error. Could anything in my PC's network settings affect IIS Express?
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Jaliya Udagedara 2,821 Reputation points MVP
2021-12-02T09:42:16.34+00:00 I don't think so. Can you try uninstalling/reinstalling IIS express.
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Sam Wu-MSFT 7,286 Reputation points Microsoft Vendor2021-12-03T03:11:48.483+00:00 @Justin Hardin Have you tried the solutions in this link? He has the same problems as you: visual-studio-2019-unable-to-connect-to-web-server-iis-express.
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Justin Hardin 6 Reputation points
2021-12-03T04:02:11.49+00:00 I did and there is no change. Aside from resetting my os, I don't know what to do.
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Justin Hardin 6 Reputation points
2021-12-03T04:09:45.327+00:00 I just tried them and got the same error every time. This works flawlessly on my laptop, but not on my PC. The only different is that I built my PC and there is no wireless card. I've also changed some settings around to enable port forwarding. I don't know if that can have something to do with it.
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Justin Hardin 6 Reputation points
2021-12-03T04:36:39.427+00:00 I still get the same error after doing that
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Sam Wu-MSFT 7,286 Reputation points Microsoft Vendor
2021-12-03T09:51:02.883+00:00 @Justin Hardin Close Visual Studio, delete bin and obj folders from the project folder. Open Project then rebuild solution. Try running Visual Studio as Administrator. Clean Solution then rebuild. If it still can't work, I suggest you open a case via: https://support.microsoft.com.
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Ken Tucker 5,851 Reputation points2021-12-03T01:43:09.44+00:00 -
Justin Hardin 6 Reputation points
2021-12-03T04:01:01.65+00:00 Unfortunately that did not fix my problem
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