I have asp.net web application project in visual studio 2012. When I want to start it, I have the following error:
Unable to launch the IIS Express Web server: P
Navigate to IIS express
cd "C:\Program Files (x86)\IIS Express\" run this appcmd.exe list site /xml | appcmd delete site /in
cd "C:\Program Files (x86)\IIS Express\"
run this appcmd.exe list site /xml | appcmd delete site /in
appcmd.exe list site /xml | appcmd delete site /in
Also, clear your temp files in %temp% and logout, or reboot
%temp%
This will delete all the sites, enjoy!