Google play services (lib build path error)

I have 2 computers on which I develop my app. On one of the I had a problem with adding Google play services library.
Each time I have imported the Google play services into workspace (eclipse) and then built a path to it, nothing happened and then the path was receiving error (an X symbol next to the lib include).

The solution was to set both project (Google service and My project) on the same physical driver (for example C driver).  

More about the app environment

So here is the full environment list of the app:
Client side:
Android -

<uses-sdk

        android:minSdkVersion="14"

        android:targetSdkVersion="18" />

I am using Eclipse IDE with the ADT plugin for developing Android applications.

I hate the built in emulator of Eclipse, so I found Genymotion emulator (try it, very fast!!!). I will talk in my next posts about this emulator.

Server side:

Java- 7th version. I am using maven platform. And my IDE is Eclipse.

DB- MySQL.

localhost- Apache Tomcat 7.0

Hosting:

I am using Heroku for my server side stuff (DataBase and server).

For the client side I am using GIT on BitBucket for version control. 

About me

So about a year and half ago I started to be interested in Web Development after a data base curse in Technion.  One of the home work was to create a website with connection to data base.  It was the first time I was exposed to Web Development.  I really loved it, I took this to the next level.  I read few books and sow a lot of videos on YouTube.  Then I created few Web sites., on of them for my wife parents here is the link.

Then I started be more and more interested in app development.  The easiest way to start was Android.  It needed a PC not an apple machine (which is not cheap).
Again I read few books sow tutorials on the  net.  I have developed 2 very basic apps one is a screen flashlight app for devices without flashlight and the other one a bit more complex  called simple math game.  You can  find the both on Google play, search for Vlad I offer and you'll find them.

After more then a year of playing with the Android platform I was ready to start working on a more serious application. I made few attempts to work with third part platforms for my back end, the one I liked the most was Parse. As I was developing I found a lot of thing that made me fill that my arms were cuffed and using Parse is not enough for me.  So I decided to write my own back end and I decided to write it in Java.

Introduction

Hi,
My name is Vlad and I am a student in Technion (Haifa, Israel) my field of studies is IE specialization in Information Systems.

I have decided to write a blog about my experiences while I am developing my first (serious) Android application. If the number of followers of this blog will grow I will try to evolve you (follower and readers) in the development process.

I will update this blog daily, describing my progress.

keep in touch,
Vlad