Sorry didn't realize you deleted your original post, please ignore other notifications ...

The problem is something that the RFduino team might want to take a look at changing. The .bat syntax the have defined to allow us to establish the size of the compiled program fails, not just for Visual Micro but also when using windows command prompt. 

The problem is the double quotes around the name of the .elf

this is how it is in the arduinoide\hardware\arduino\RFduino\platform.txt

recipe.size.pattern="{size.script.path}/{size.script.cmd}" "{compiler.path}{compiler.size.cmd}" -A "{build.path}/{build.project_name}.elf"
 

remove the quotes from "{build.path}/{build.project_name}.elf"  as follows:-

recipe.size.pattern="{size.script.path}/{size.script.cmd}" "{compiler.path}{compiler.size.cmd}" -A {build.path}/{build.project_name}.elf 

The platform.txt can be edited with any text editor such as notepad++. Find recipe.size.pattern=, make the change, click save then re-start any ide's

Can you report this to the RFduino team? The fact that it fails in command prompt makes it a worthwhile change for them.

Thanks

Thanks