I was trying to build uImage for 2012 buildroot version with libmcapi library in a system with full permission IP and has no proxy enabled. It is saying the file is not found and that file was not there when I checked http://sources.buildroot.net//libmcapi-10834.tar.gz through browser. I attached the screenshot of the error. Is there any other source through which this libmcapi can be downloaded? Please upload the libmcapi-10834.tar.gz file if it's not present.