RAJU If you set the all java_SDk and Android_sdk in environment variable in your system than it is good to handle command from any where so check this steps.
Yes, you are right, the compatibility is the problem. I tried it and got vending. Apk is only installed but GoogleServicesFramework.
Apk is not installed it is showing the error as FAILUREINSTALL-PARSE-FAILED-NO-CERTIFICATE.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.