title: Error: Program "/ndk-build.cmd" is not found in PATH
body: <p>I am stuck with this following problem on Mac OS X(10.8.4) and eclipse JUNO since 10 days and I haven't found anything working on web.</p>
  
  <p>I have downloaded and unzipped the android NDK. After that, I have set the NDK location in 'Android' option in preferences menu. I want to run a sample opencv code(<a href="https://www.dropbox.com/s/6s3qwkon9v67u5z/tutorial-3-native.rar">https://www.dropbox.com/s/6s3qwkon9v67u5z/tutorial-3-native.rar</a>) on the android ADT.</p>
  
  <p>While building, it gives the following console output</p>
  
  <pre><code>**** Build of configuration Default for project OpenCV Sample - native-activity ****
  
  "/ndk-build" 
  
  Cannot run program ""/ndk-build"": Unknown reason
  Error: Program ""/ndk-build"" is not found in PATH
  
  PATH=[/usr/bin:/bin:/usr/sbin:/sbin]
  
  **** Build Finished ****
  </code></pre>
  
  <p>I don't know anything about PATH variables/Environment Variables.
  Please provide step by step procedure to rectify the above error.</p>