This article will help you to overcome the error Unable to Launch the IIS Express Web Server. Today I encountered the issue “Unable to launch the IIS Express Web Server” while I was running my Visual Studio 2012. So I thought of sharing how to resolve that issue. I hope it will help someone.

Unable to Launch the IIS Express Web Server

Background

In my team we have 5 to 10 members. Since we wanted to do a build for our current application, I used “Get the Latest files from the server”. (We are using TFS.) Then when I run my application I was getting this error.

The cause of this error is, someone has checked in the solution file with his port number (the port number he was using). When I took the latest, it was set in my solution file also. We must take the latest solution file only when it is required. So here I will share the remedy for the preceding issue.

Procedure to solve this issue

Step 1

Right-click on your solution and select Properties as shown in the following figure.

Unable to Launch the IIS Express Web Server

Step 2

Select “Web” from the left menu.

Unable to Launch the IIS Express Web Server

Step 3

Under “Use local IIS server” change the port number from http://localhost:58030/ to another one.

Unable to Launch the IIS Express Web Server

Step 4

Here I have changed http://localhost:58030/ to http://localhost:58031/ .

Bingo! We have done it.

Unable to Launch the IIS Express Web Server

Step 5

Now please run again your application. The issue will be solved.

Conclusion

Did I miss anything that you may think which is needed? Have you ever faced this issue? Does this solution solve your issue?I hope you liked this article. Please share me your valuable suggestions and feedback.

Your turn. What do you think?

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Kindest Regards
Sibeesh Venu