I receive the following when compiling a new empty chipKIT UNO32 project.
mpide.exe is compiling projects just fine but not through VS.
I even tried to uninstall and reinstall the VisualMicro VS plugin.

Compiling 'TestUno32' for 'chipKIT UNO32'
core.a(WSystem.c.o)*:In function `initIntVector'
WSystem.c:undefined reference to `_image_header_info'
WSystem.c:undefined reference to `_image_header_info'
collect2*:ld returned 1 exit status
Error creating .elf

I unchecked the "automatic debugging" but I still get the same error in the output window.
Also it shows the following in the error list window.
"Error      1      Sketch (WSystem.c.o)"

The core.a(WSystem.c.o) filename seems odd to me.

As a side note, I also compile Arduino UNO through your tool in VS 2013 Update 4 and it is working fine.
It seems to only happen with the MPIDE builds.
Also, this computer is a Windows 10 Preview Build 9879.
But like I said, MPIDE builds fine outside of VS 2013.

MPIDE 0023-Windows-20140821

There is a new beta of visual micro available from the downloads page. The beta contains an updated platform.txt for mpide pic32 boards. see http://www.visualmicro.com/page/Visual-Micro-Product-Version-History-Fixes-and-A...

The .o files build okay for most chipKIT sources but the new version has additional flags. So it is best to ensure you start with a  clean build. It would be a good idea to click "build.clean solution" the first time you build with the updated visual micro. 

Thanks for the post