Wednesday, January 18, 2017

Failure to start website in IIS Express: Process with an ID #### is not running

Last week during a training one of the participants got the following error when she tried to debug a web application in IIS Express. IIS Express failed to start and Visual Studio showed the following error message:

Process with an ID #### is not running

We couldn’t find the root cause of the issue but we had a workaround to fix it:

  • Close Visual Studio.
  • Delete the hidden .vs folder on solution level
  • Open your solution again
  • This time IIS express should be back up and running

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