Invalid file: google-play-services_lib/build.xml in android

I have an android project in which i am trying to use services like maps etc., and so i came to know that i need to use google-play-services_lib library. So i just taken it from source sdk(sdk/extras/google/google_play_services/libproject) folder and copied it to location /Users/name/android/ on my computer. Now i imported the library in to eclipse. Next i created a reference to this library from eclipse like MyApp->Properties->Android->Library Section/Add and there are no errors in the project and working fine when i run it from eclipse but i just want to run it through terminal and here i moved to project location folder and tried the commands ant clean but received the following errors

Buildfile: /Users/name/android/project/project_name/build.xml

-check-env:
 [checkenv] Android SDK Tools Revision 24.0.2
 [checkenv] Installed at /Users/name/andriod_installation/adt-bundle/sdk

-setup:
     [echo] Project Name: Project_name
  [gettype] Project Type: Application

-pre-clean:

clean:
   [delete] Deleting directory /Users/name/android/project/project_name/bin
   [delete] Deleting directory /Users/name/android/project/project_name/gen
[getlibpath] Library dependencies:
[getlibpath] 
[getlibpath] ------------------
[getlibpath] Ordered libraries:

BUILD FAILED
/Users/name/andriod_installation/adt-bundle/sdk/tools/ant/build.xml:470: Invalid file: /Users/name/android/google-play-services_lib/build.xml

Total time: 1 second

Can anyone please let me know whats wrong with the google_play_services_lib or reference created to it, why ant was not able to find build.xml or saying invalid file ?