“Unable to launch the IIS Express Web server.” in Visual Studio

Question

I attempted to run my web service through visual studio. I faced an issue like :

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Microsoft Visual Studio
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Answer 1

I was able fix this problem by removing everything from to tags in

Users//Documents/IISExpress/config/applicatiohost.config file

  
     .
     .   ===> remove this content including the  and  tags.
     .