Failed to build an apk after adding facebook SDK to unity3d project

I'm developing a game in unity3D version 4.3.2f1. As a feature I have integrated facebook SDK 5.1 to share the score in facebook. game works fine in unity player. When I try to build apk file for android it gives this error.

 Error building Player: CommandInvokationFailure: Failed to re-package resources. See the Console for details.
 C:\Program Files\eclipse\adt-bundle-windows-x86_64-20140702\sdk\build-tools\android-4.4W\aapt.exe     package --auto-add-overlay -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "C:/Program Files/eclipse/adt-bundle-windows-x86_64-20140702/sdk/platforms/android-20\android.jar" -F bin/resources.ap_ --extra-packages com.facebook.android -S "C:\Users\Niroshan\Documents\Unity\Leap Frog\Temp\StagingArea\android-libraries\facebook\res"`
  
 stderr[
 res\values\attrs.xml:20: error: Attribute "show_pictures" has already been defined
 res\values\attrs.xml:21: error: Attribute "extra_fields" has already been defined
 res\values\attrs.xml:22: error: Attribute "show_title_bar" has already been defined
 res\values\attrs.xml:23: error: Attribute "title_text" has already been defined
 res\values\attrs.xml:24: error: Attribute "done_button_text" has already been defined
 res\values\attrs.xml:25: error: Attribute "title_bar_background" has already been defined 
 res\values\attrs.xml:26: error: Attribute "done_button_background" has already been defined
 res\values\attrs.xml:29: error: Attribute "multi_select" has already been defined
 res\values\attrs.xml:32: error: Attribute "radius_in_meters" has already been defined
 res\values\attrs.xml:33: error: Attribute "results_limit" has already been defined
 res\values\attrs.xml:34: error: Attribute "search_text" has already been defined
 res\values\attrs.xml:35: error: Attribute "show_search_box" has already been defined
 res\values\attrs.xml:38: error: Attribute "confirm_logout" has already been defined
 res\values\attrs.xml:39: error: Attribute "fetch_user_info" has already been defined
 res\values\attrs.xml:40: error: Attribute "login_text" has already been defined
 res\values\attrs.xml:41: error: Attribute "logout_text" has already been defined
 res\values\attrs.xml:44: error: Attribute "preset_size" has already been defined
 res\values\attrs.xml:50: error: Attribute "is_cropped" has already been defined
 C:\Users\Niroshan\Documents\Unity\Leap Frog\Temp\StagingArea\android-    libraries\facebook\res\layout\com_facebook_tooltip_bubble.xml:24: error: Error: No resource found   that matches the given name (at 'style' with value '@style/tooltip_bubble_text').
 ]

I can't figure out what is the wrong. I deleted the facebook plugin and imported it again, Change the JDK path to 32 bit version, and set the ADT to latest release but no use.I really appreciate any kind of help. Thank you in advance.