Integration with xamarine

XAM1.jpgXAM2.jpg
ACCORDING TO THIS VIDEO Webinar Recording: Native App Development for iOS, Android, and Windows in Visual Studio | Xamarin Blog
I INTEGRATED THE XAMARINE WITH VS2013 ULTIMATE WITH UPDATE 4.
I TAKE THE FREE SUBSCRIPTION FROM THE XAMARINE AND BUILD MY FIRST PROJECT OF ANDROID AND RECEIVED THE FOLLOWING ERROR.
Error 1 Cannot find aapt.exe. Please install the Android SDK Build-tools package with the E:\islamabad pics\New folder\New folder\sdk ools\android.bat program. App1
ALTHOUGH I PUT THE FILE IN THE FOLDER AND TRY AGAIN BUT IN VAIN.
AND OTHER ERRORS ARE.
Warning 2 The referenced component ‘Mono.Android’ could not be found. App1
Warning 3 The referenced component ‘mscorlib’ could not be found. App1
Warning 4 The referenced component ‘System’ could not be found. App1
Warning 5 The referenced component ‘System.Core’ could not be found. App1
Warning 6 The referenced component ‘System.Xml.Linq’ could not be found. App1
Warning 7 The referenced component ‘System.Xml’ could not be found. App1

PLEASE FIND THE ERROR AND OTHER WARNINGS AND POST A RELEVANT SOLUTION.