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Problem building and compiling VideoPlayback Sample project, No libs folder

Good day, When i try to build and complie the VideoPlayback sample project, i get the following error message with the Android NDK

$  /cygdrive/c/AndroidNDK/android-ndk-r9/ndk-buildAndroid NDK: ERROR:jni/Android.mk:QCAR-prebuilt: LOCAL_SRC_FILES points to a missing fileAndroid NDK: Check that jni/../../../build/lib/armeabi/libQCAR.so exists  or that its path is correct/cygdrive/c/AndroidNDK/android-ndk-r9/build/core/prebuilt-library.mk:45: *** Android NDK: Aborting    .  Stop.  i noticed that in the sample project, i don't have a libs folder, so thats why i tried building with the ndk-build tool but i just get the error message above.  Please any help will be greatly appreciated. Thanks