title: NDK location not found
body: <p>I get the error message "Error:Specified NDK location does not exists.  Please ensure ndk.dir in local.properties file or ANDROID_NDK_HOME is configured correctly." when I try to run a sample android application from <a href="http://artoolkit.org/documentation/" rel="nofollow noreferrer">ARToolKit</a> in Android Studio 2.2.2. This application has also parts (libraries) written in c++ which is why the NDK is necessary.</p>
  
  <p>I have tried to set the environmental variable ANDROID_NDK_HOME and the property ndk.dir in the local properties file and I still get this message. </p>
  
  <p>I installed the NDK using the built in SDK manager and it was correctly downloaded and installed at the location specified in the variable.</p>
  
  <p>I use a Windows 7 64 bits computer and the target SDK version is 23.</p>