```tns run android``` throws an error if android platform is not added before that

[valentinstoychev]

It give you an error message - c:\work\SideDrawerPlayGround\platforms\android\build.xml does not exist!.

The thing is that after that you can't add the android platform because it seems like the tns run android command is creating an android folder.

[vchimev]

This issue is resolved as we "add platform on each platform related command" - #785.