c# - x64 application is not attaching to Visual studio isolated shell -

i have sample c# application,

when attach application vs isolated shell 2013 debugging, working fine when application platform target x86.

but failing attach vs isolated shell when application platform target x64

error message showing when attaching x64 application

unable attach process. debugger not installed. run setup install or repair debugger

does vs isolataed shell support x64 application debugging?

if how can fix issue?