"Unable to start debugging on the web server. The web server is not configured correctly. See help for common configuration errors. Running the web page outside of the debugger may provide further information."
Above Error Comes When web Server is not configured correctly
Steps To resolve this error
Check to see that the Web site has been configured as an Application in IIS.
From the Start menu, choose Programs, then Administrative Tools, and click Internet Information Services.
In the Internet Information Services dialog box, click the tree control for your machine, open the Web Sites folder, and find your web site.
Right-click Web Site and choose Properties.
In the Web Site Properties window, select the Directory tab.
Under Application Settings, look for the Remove or Create button.
If the button says Remove, your website is already configured as an application.
If the button says Create, click the button to configure your website as an application.