title: Android "No such file or directory" error?
body: <p>after I install the ADT and add the CDT and NDK and add the OpenCV library 
  this error appears </p>
  
  <pre><code>**** Build of configuration Default for project OpenCV Tutorial 2 - Mixed Processing     ****
  
  C:\android-ndk-r9\ndk-build.cmd 
  jni/Android.mk:5: ../../sdk/native/jni/OpenCV.mk: No such file or directory
  make: *** No rule to make target `../../sdk/native/jni/OpenCV.mk'.  Stop.
  
  **** Build Finished ****
  </code></pre>
  
  <p>this is the Android.mk code</p>
  
  <pre><code>    LOCAL_PATH := $(call my-dir)
  
  include $(CLEAR_VARS)
  
  include ../../sdk/native/jni/OpenCV.mk
  
  LOCAL_MODULE    := mixed_sample
  LOCAL_SRC_FILES := jni_part.cpp
  LOCAL_LDLIBS +=  -llog -ldl
  
  include $(BUILD_SHARED_LIBRARY)
  </code></pre>