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

I've tried all but nothing worked in my case then I've changed these mentioned settings which resolved the issue quite well for me. Try If it could of any help latter viewers. These settings could be vary in your situation but make sure build all the including DLLs with the same config settings you kept initially (mentioned in the image.).

Cheers!