Menu
I am developing a web project and I am not being able to test it using the IIS Express from the Visual Studio 2015.
I have googled this error and I found many references to it on the internet, but I believe that my case is different, because there is no other error message displayed besides "Unable to Launch IIS Express Web Server".
I've looked at the Windows Event Viewer and I got these errors below:
The worker process failed to initialize correctly and therefore could not be started. The data is the error.
The Module DLL C:\Program Files (x86)\IIS Express\aspnetcore.dll failed to load. The data is the error.
I also tried to launch the IIS Express directly using: c:\Program Files (x86)\IIS Express>iisexpress.exe /trace:error and I was successfull, so I think that the problem must be somewhere within Visual Studio and that my port (8080) is free.
Does anyone knows what else I can do?
679
Try deleting the automatically-created IISExpress folder, which is usually located at %userprofile%/Documents , e.g. C:\Users\[you]\Documents\IISExpress . Don't worry, VS should create it again - correctly, this time - once you run your solution again. This worked for me.
go to control panel => programs and features => turn windows features on or of => tick 'internet information services' and click ok.
An important difference is the way worker processes are managed. In IIS, the Windows Process Activation Service (WAS) silently activates and deactivates Web applications and the user has no direct control. In IIS Express, there is no WAS and the user has full control of application activation and deactivation.
If you are working with .NET core/ASP.NET core application then please make sure you have installed these-
.NET Core SDK
VS 2015 Tooling Preview 2
If it is appeared to be solution-specific then-
Look for applicationhost.config file at <solution-name>\.vs\config\applicationhost.config location
Try removing this file and run solution again.
See if this helps.
82
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
