title: NDK_PROJECT_PATH=null on Android Studio 3.1.2
body: <p>I'm trying to build an Android projects which involves NDK: <a href="https://github.com/CoolMicApp/CoolMicApp-Android" rel="noreferrer">CoolMicApp-Android</a> (already have the latest Android Studio and NDK installed)</p>
  <p>I followed the <a href="https://github.com/CoolMicApp/CoolMicApp-Android/blob/master/BUILDING" rel="noreferrer">BUILDING</a> note correctly. When the project is loaded in Android Studio, there are some errors:</p>
  <blockquote>
  <p>Build command failed.</p>
  <p>Error while executing
  'C:\Users\Cipta-NB\AppData\Local\Android\Sdk\ndk-bundle\ndk-build.cmd'
  with arguments {NDK_PROJECT_PATH=null
  APP_BUILD_SCRIPT=C:\Users\Cipta-NB\StudioProjects\CoolMicApp-Android\app\src\main\jni\Android.mk
  NDK_APPLICATION_MK=C:\Users\Cipta-NB\StudioProjects\CoolMicApp-Android\app\src\main\jni\Application.mk
  APP_ABI=armeabi NDK_ALL_ABIS=armeabi NDK_DEBUG=0
  APP_PLATFORM=android-16
  NDK_OUT=C:/Users/Cipta-NB/StudioProjects/CoolMicApp-Android/app/build/intermediates/ndkBuild/release/obj
  NDK_LIBS_OUT=C:\Users\Cipta-NB\StudioProjects\CoolMicApp-Android\app\build\intermediates\ndkBuild\release\lib
  APP_SHORT_COMMANDS=false LOCAL_SHORT_COMMANDS=false -B -n}</p>
  <p>Android NDK: INTERNAL ERROR: The armeabi ABI should have exactly one
  architecture definitions. Found: ''</p>
  <p>process_begin: CreateProcess(NULL, &quot;&quot;, ...) failed.</p>
  <p>*** Android NDK: Aborting...    .  Stop. Open File</p>
  </blockquote>
  <p>The C libs can be built successfully by running this command, though:</p>
  <blockquote>
  <p>ndk-build
  NDK_APPLICATION_MK=C:\Users\Cipta-NB\StudioProjects\CoolMicApp-Android\app\src\main\jni\Application.mk
  NDK_PROJECT_PATH=C:\Users\Cipta-NB\StudioProjects\CoolMicApp-Android\app\src\main</p>
  </blockquote>
  <p>In my laptop, ndk-build is located in <strong>C:\Users\Cipta-NB\AppData\Local\Android\Sdk\ndk-bundle</strong>. Creating an environment variable called <strong>NDK_PROJECT_PATH</strong> and restarting Android Studio doesn't solve the problem.</p>
  <p>This is the content of local.propertes file in the project directory:</p>
  <blockquote>
  <p>ndk.dir=C:\Users\Cipta-NB\AppData\Local\Android\Sdk\ndk-bundle</p>
  <p>sdk.dir=C:\Users\Cipta-NB\AppData\Local\Android\Sdk</p>
  </blockquote>
  <p>And this is the content of Application.mk</p>
  <blockquote>
  <p>APP_ABI := armeabi-v7a</p>
  <p>APP_PLATFORM := android-14</p>
  </blockquote>
  <p>Is there any (easy) workaround?</p>