tool exited with code:255.output:

[jingliancui]

Down your project to my pc.
build the solution simpleapp-with-framework's simpleapp-with-framework-binding project.
IDE can not complie this with this error message:tool exited with code:255.output:

My pc: Win10 the newest rs (net insider preview)
VS2015 with update 3
Xamarin the standar newest sdk
Mac osx the newest version (not insider)
xcode the newest
iossdk the newest 10.1

I find your project by this link:
https://developer.xamarin.com/guides/ios/advanced_topics/embedded_frameworks/

And i don't know how to use mtouch to do it, because the web side it difficult to understand how to use the mtouch to do the framework compile