make android apk ,error

Install : libcocos2dcpp.so => libs/armeabi/libcocos2dcpp.so
E:/android/android-ndk-r8e-windows-x86/android-ndk-r8e/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/bin/arm-linux-androideabi-strip: unable to rename ‘./libs/armeabi/libcocos2dcpp.so’; reason: File exists
make: * Error 1
make:
* Deleting file `libs/armeabi/libcocos2dcpp.so’
make: unlink: libs/armeabi/libcocos2dcpp.so: Permission denied

thx~

Try to add permission to the folder of this project, ex: chmod.