When trying to deploy an app in Android Device, VS is stuck here:
1>C:\\Users\\George\\AppData\\Local\\Android\\android-sdk\\build-tools\\23.0.1\\zipalign
I'm having the same issue on my Emulator and device and also use the Fast Deployment but still sometime see the issue.
So far, my fix is either clean solution and build then deploy, that sometime will work. Or, restart my pc, that's also sometime works.
I don't have a solution yet, but with combine these two and try many time, it will work.