title: Android NDK: WARNING: Ignoring unknown import directory: C
body: <blockquote>
    <p>I'm working with cocos2dx 2.1.4 ndk-r8e.When I compile the
    ./build_native.sh I get the error as show I have tryed to solve the
    solution provide by googling but didnt helped can any one plz point
    out the problem below:
    <a href="http://sdrv.ms/1a4FTYX" rel="nofollow">here is image</a> </p>
    
    <p>here is my build_native.sh file :</p>
  </blockquote>
  
  <pre><code>NDK_ROOT="C:\Users\Documents\Downloads\android-ndk-r8e-windows-x86_64\android-ndk-r8e"
  APPNAME="hellowWorld"
  
  # options
  
  buildexternalsfromsource=
  
  usage(){
  cat &lt;&lt; EOF
  usage: $0 [options]
  
  Build C/C++ code for $APPNAME using Android NDK
  
  OPTIONS:
  -s  Build externals from source
  -h  this help
  EOF
  }
  
  while getopts "sh" OPTION; do
  case "$OPTION" in
  s)
  buildexternalsfromsource=1
  ;;
  h)
  usage
  exit 0
  ;;
  esac
  done
  
  # paths
  
  if [ -z "${NDK_ROOT+aaa}" ];then
  echo "please define NDK_ROOT"
  exit 1
  fi
  
  DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &amp;&amp; pwd )"
  # ... use paths relative to current directory
  COCOS2DX_ROOT="C:\Users\monika\AppData\Local\Temp\cocos2d-x-2.1.4\cocos2d-x-2.1.4"
  APP_ROOT="C:\Users\monika\AppData\Local\Temp\cocos2d-x-2.1.4\cocos2d-x-2.1.4\monicahello"
  APP_ANDROID_ROOT="C:\Users\monika\AppData\Local\Temp\cocos2d-x-2.1.4\cocos2d-x-2.1.4\monicahello\proj.android"
  
  echo "NDK_ROOT = $NDK_ROOT"
  echo "COCOS2DX_ROOT = $COCOS2DX_ROOT"
  echo "APP_ROOT = $APP_ROOT"
  echo "APP_ANDROID_ROOT = $APP_ANDROID_ROOT"
  
  # make sure assets is exist
  if [ -d "$APP_ANDROID_ROOT"/assets ]; then
      rm -rf "$APP_ANDROID_ROOT"/assets
  fi
  
  mkdir "$APP_ANDROID_ROOT"/assets
  
  # copy resources
  for file in "$APP_ROOT"/Resources/*
  do
  if [ -d "$file" ]; then
      cp -rf "$file" "$APP_ANDROID_ROOT"/assets
  fi
  
  if [ -f "$file" ]; then
      cp "$file" "$APP_ANDROID_ROOT"/assets
  fi
  done
  
  # copy icons (if they exist)
  file="$APP_ANDROID_ROOT"/assets/Icon-72.png
  if [ -f "$file" ]; then
      cp "$file" "$APP_ANDROID_ROOT"/res/drawable-hdpi/icon.png
  fi
  file="$APP_ANDROID_ROOT"/assets/Icon-48.png
  if [ -f "$file" ]; then
      cp "$file" "$APP_ANDROID_ROOT"/res/drawable-mdpi/icon.png
  fi
  file="$APP_ANDROID_ROOT"/assets/Icon-32.png
  if [ -f "$file" ]; then
      cp "$file" "$APP_ANDROID_ROOT"/res/drawable-ldpi/icon.png
  fi
  
  
  if [[ "$buildexternalsfromsource" ]]; then
      echo "Building external dependencies from source"
      "$NDK_ROOT"/ndk-build -C "$APP_ANDROID_ROOT" $* \
          "NDK_MODULE_PATH=${COCOS2DX_ROOT}:${COCOS2DX_ROOT}/cocos2dx/platform/third_party/android/source"
  else
      echo "Using prebuilt externals"
      "$NDK_ROOT"/ndk-build -C "$APP_ANDROID_ROOT" $* \
          "NDK_MODULE_PATH=${COCOS2DX_ROOT}:${COCOS2DX_ROOT}/cocos2dx/platform/third_party/android/prebuilt"
  fi
  </code></pre>