Problem in running HelloWorld using ndk r6

I have followed http://www.cocos2d-x.org/projects/cocos2d-x/wiki/How_to_run_HelloWorld_on_ndk_r4_and_r5 except that I have used ndk r6 from google instead version from crystax also changed nothing in cocos2dx/android.mk and helloworld.mk.

But when i try to run build_native.sh I always get this error.
StaticLibrary : libstdc++.a
Prebuilt : libstlport_static.a <= /sources/cxx-stl/stlport/libs/armea
bi/
SharedLibrary : libcocos2d.so
C:/android-ndk-r6b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/bin/.
./lib/gcc/arm-linux-androideabi/4.4.3/…/…/…/…/arm-linux-androideabi/bin/ld.e
xe: D:/projects/ccd/cocos2d-x/HelloWorld/android/obj/local/armeabi/libstlport_st
atic.a: No such file: Permission denied
collect2: ld returned 1 exit status
make: * [/cygdrive/d/projects/ccd/cocos2d-x/HelloWorld/android/obj/local/armea
bi/libcocos2d.so] Error 1
make: Leaving directory `/cygdrive/d/projects/ccd/cocos2d-x/HelloWorld/android’

How can I fix this? Im using cocos2d-1.0.1-x-0.9.1 btw.
Thanks in advance.

I will try it now.

I have built with ndk-r6, it worked ok.
My codes is the latest of github, but the .mk file is the same as cocos2d-1.0.1-x-0.9.1.

No such file: Permission denied

It seems you have not permission?

yes, changing the mode of the file solved the problem.

chmod a+rw libstlport_static.a

Thanks for the immediate response. =)