Command invokation failure:Failed to repakage resource

Hi guys,
I built my game orginally in unity 4.5.3f3 and recently ported my game to unity 5 everything works fine.But i could not build my game to android due to following error.First unity said i need to update my jdk to 7.Then it said updating android sdk.I installed version 21.1.2 built tool.I get following error,(what else should i upgrade in sdk manager).Thanks in advance

Error building Player: CommandInvokationFailure: Failed to re-package resources. See the Console for details.
F:\sdk\build-tools\21.1.2\aapt.exe package --auto-add-overlay -v -f -m -J gen -M AndroidManifest.xml -S “res” -I “F:/sdk/platforms/android-19\android.jar” -F bin/resources.ap_

stderr[
AndroidManifest.xml:4: error: No resource identifier found for attribute ‘isGame’ in package ‘android’

AndroidManifest.xml:4: error: No resource identifier found for attribute ‘banner’ in package ‘android’

]
stdout[
Configurations:
(default)
xhdpi-v4

Files:
drawable\app_banner.png
Src: (xhdpi-v4) res\drawable-xhdpi\app_banner.png
drawable\app_icon.png
Src: () res\drawable\app_icon.png
values\strings.xml
Src: () res\values\strings.xml
AndroidManifest.xml
Src: () AndroidManifest.xml

Resource Dirs:
Type drawable
drawable\app_banner.png
Src: (xhdpi-v4) res\drawable-xhdpi\app_banner.png
drawable\app_icon.png
Src: () res\drawable\app_icon.png
Type values
values\strings.xml
Src: () res\values\strings.xml
Including resources from package: F:\sdk\platforms\android-19\android.jar
applyFileOverlay for drawable
applyFileOverlay for layout
applyFileOverlay for anim
applyFileOverlay for animator
applyFileOverlay for interpolator
applyFileOverlay for transition
applyFileOverlay for xml
applyFileOverlay for raw
applyFileOverlay for color
applyFileOverlay for menu
applyFileOverlay for mipmap
Processing image: res\drawable-xhdpi\app_banner.png
Processing image: res\drawable\app_icon.png
(processed image res\drawable\app_icon.png: 94% size of source)
(processed image res\drawable-xhdpi\app_banner.png: 93% size of source)
(new resource id app_banner from xhdpi-v4\drawable\app_banner.png #generated)
(new resource id app_icon from drawable\app_icon.png #generated)
]

check the Asset/Plugin folder

if you are using play service is play service .jar is in your plugin folder and res folder must be in plugin folder