VS2013 VS2015 VS2017 Debugging appears unable to start the IIS Express Web server

Recently encountered this problem, every day so, annoying the dead, many online answers, but can not solve, but also because of various circumstances caused by different, here are several solutions are recorded

I can do all the other projects.

Because other projects can, just such a no, so the basic is the configuration problem, online methods are tried, I tried all useless, now talk about my solution

With Notepad or any other text editor, open the project's. csproj file, navigate to <webprojectproperties>, and set the configuration for IIS <DevelopmentServerPort>, < Developmentservervpath>, <IISUrl> properties are emptied,<autoassignport> to true, save, re-open the project with VS2015, and then Ctrl+f5, success!

The principle is to have VS2015 reset the boot configuration.

http://blog.csdn.net/wei123456/article/details/53470399

Second, GitConflict-induced

Solution:
1. Remove ApplicationHost.config.
2. Turn off the project reload to resolve.

Third, after installing visual Sutudil Update 3, there is a problem with the debug project "Unable to start the IIS Express Web server"

You are using the IIS Express Debug project.

View Event Viewer Discovery Error log: module DLL C:\Program Files (x86) \iis Express\aspnetcore.dll failed to load. The returned data is an error message.

View directory, no Aspnetcore.dll found.

Solve the direction, how can install Aspnetcore.dll?

To Https://www.microsoft.com/net/core download,. NET Core Tools preview for Visual Studio.

Aspnetcore.dll has appeared in the directory after the installation is complete.

Re-run the program, normal.

Iv. copy of the project caused by

Copy the tool native solution file in the hidden folder. Vs Remove the re-production solution to start IIS Express

V. Temporary solutions, not necessarily effective

In command line net stop HTTP, and then restart the computer

VS2013 VS2015 VS2017 Debugging appears unable to start the IIS Express Web server