title: WebRTC : ninja build not working
body: <p>Steps I followed for build of webRTC in UBUNTU env.</p>
  
  <p>Check out the code:</p>
  
  <pre><code> gclient config https://webrtc.googlecode.com/svn/trunk
   echo "target_os = ['android', 'unix']" &gt;&gt; .gclient
   gclient sync --nohooks
  </code></pre>
  
  <p>Generate ninja makefiles:</p>
  
  <p>cd trunk</p>
  
  <pre><code> $./build/install-build-deps-android.sh
   $. build/android/envsetup.sh
   Defaulting GYP_GENERATORS to ninja
  
   $gclient runhooks
   $android_gyp
  </code></pre>
  
  <p>result of android_gyp:</p>
  
  <pre><code>GYP_GENERATORS set to 'ninja'
  Updating projects from gyp files...
  gyp: /home/user/webRTC/trunk/chrome/chrome_resources.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/tools/android/findbugs_plugin/findbugs_plugin.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/sql/sql.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/tools/android/android_tools.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/sync/sync.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/sandbox/sandbox.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/net/net.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/media/media.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/ipc/ipc.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/gpu/gpu.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/components/components_tests.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/base/base.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/breakpad/breakpad.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/base/android/jni_generator/jni_generator.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/third_party/cacheinvalidation/cacheinvalidation.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/remoting/remoting.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/chrome/chrome.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/android_webview/android_webview.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/mojo/mojo.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/content/content_shell_and_tests.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/ui/ui_unittests.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/webkit/renderer/compositor_bindings/compositor_bindings_tests.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/cc/cc_tests.gyp not found (cwd: /home/user/webRTC/trunk)
  gyp: /home/user/webRTC/trunk/third_party/WebKit/public/all.gyp not found (cwd: /home/user/webRTC/trunk)
  </code></pre>
  
  <p>Build and Install Demo app:</p>
  
  <pre><code>$ ninja -C out/Debug video_demo_apk
  ninja: Entering directory 'out/Debug'
  ninja: error: unknown target 'AppRTCDemo'
  </code></pre>
  
  <p>please let me know if I've donw any steps wrong.
  I think android_gyp is giving problem, but donno. </p>
  
  <p>Note: I'm using Ubuntu(VMware) on my windows OS</p>