How to find reason of failed Build without any error or warning

Question

I have a WebApplication which contains reference to WCF services.

While building using Visual Studio 2010, Build fails without any error or warning. However building

Answer 1

This happened to me after adding a new page to an asp.net project.

What I did was exclude the page, get it to build again successfully.

Then I added back the page with all the code commented out. Success.

Then I uncommented the code bit by bit and then it all worked.