AppGyver running iOS simulator gives error XCode not installed

I am using AppGyver, Steroids installation was done and I successfully created a demo project. I am trying to set up the iOS Simulator for Appgyver so that I can run my app on the simulator using steroids command line and debug the app, but when I want to simulate it on the ios simulator it gives XCode not installed. But I also have XCode and command line tools installed.

pkgutil --pkg-info=com.apple.pkg.CLTools_Executables​

- PRINT

pkgutil --pkgs='com.apple.pkg.Xcode.*'

- NO OUTPUT

When I use xcode-select --install

It gives "xcode-select: error: command line tools are already installed"

When I use open /Applications/Xcode.app/Contents/Developer/Applications/iOS Simulator.app

- Run the simulator

OS Version: Mac OS X Yosemite 10.10
XCode: 6.1
iOS Simulator: Version 8.1 (550.3)
Node: v0.10.24
NPM: 1.3.21

Please help me to solve this problem. Any help would be much appreciated.