Android : CastCompanionLibrary : mApiClient or mRemoteMediaPlayer is null

I'm facing a problem trying to implement Chromecast on my application with CastCompanionLibrary.

Here is how I initialise my CastManager.

public static VideoCastManager mCastMgr;
//chromeCast init
public static VideoCastManager getVideoCastManager(Context ctx) {

    if (mCastMgr == null) {
        mCastMgr = VideoCastManager.initialize(ctx, ctx.getResources().getString(R.string.CAST_APPLICATION_ID), null, null); 
        mCastMgr.enableFeatures(VideoCastManager.FEATURE_NOTIFICATION | VideoCastManager.FEATURE_LOCKSCREEN |
                VideoCastManager.FEATURE_WIFI_RECONNECT 
                | VideoCastManager.FEATURE_NOTIFICATION |
                VideoCastManager.FEATURE_DEBUGGING);
    }
    mCastMgr.setContext(ctx);
    return mCastMgr;
}

Here is just a test code to display one media. This method is called in the onCreate.

private     MediaRouteButton    mMediaRouteButton;  
private     VideoCastManager    mVideoCastManager;
private     VideoCastConsumerImpl mVideoCastConsumer;

private void setupChromeCast() {
    mVideoCastManager = MyApplication.getVideoCastManager(this);
    mMediaRouteButton = (MediaRouteButton) findViewById(R.id.media_route_button);
    mVideoCastManager.addMediaRouterButton(mMediaRouteButton);

    mMediaRouteButton.setVisibility(View.VISIBLE);

    mVideoCastConsumer = new VideoCastConsumerImpl() {
        //          .....
        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
        @Override
        public void onCastAvailabilityChanged(boolean castPresent) {
            super.onCastAvailabilityChanged(castPresent);
            mMediaRouteButton.setVisibility(castPresent ? View.VISIBLE : View.INVISIBLE);
        }

        @Override
        public void onApplicationConnected(ApplicationMetadata appMetadata,
                String sessionId, boolean wasLaunched) {
            Bundle mediaInfo = new Bundle();
            mediaInfo.putString(MediaMetadata.KEY_TITLE, "toto");
            mediaInfo.putString(MediaMetadata.KEY_SUBTITLE, "le roro");
            mediaInfo.putString(MediaMetadata.KEY_STUDIO, "mdr");
            mediaInfo.putString("movie-urls", "https://ia902302.us.archive.org/27/items/Pbtestfilemp4videotestmp4/video_test.mp4");
            mediaInfo.putString("content-type", "video/mp4");
            ArrayList<String> images = new ArrayList<String>();
            images.add("https://scontent-a-cdg.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/10426650_10203984861039843_6191993092115493723_n.jpg?oh=8cb095f97c4b8f7d726d4a4d418d65fc&oe=54C484F9");
            images.add("http://upload.wikimedia.org/wikipedia/commons/f/f3/Toto'025.jpg");
            mediaInfo.putStringArrayList("images", images);
            MediaInfo mSelectedMedia = com.google.sample.castcompanionlibrary.utils.Utils.toMediaInfo(mediaInfo);
            try {
                mVideoCastManager.startCastControllerActivity(getApplicationContext(), mSelectedMedia, 0, true);
                finish();
                return ;
            } catch (IllegalStateException e) {
              e.printStackTrace();  
            } catch (Exception e) {
              e.printStackTrace();
            }
        }

    };
}

And then in the onResume I assign my VideoCastConsumer to my Manager.

// CHROMECAST
    mVideoCastManager.addVideoCastConsumer(mVideoCastConsumer);

I have no problem with the Chromecast detection it's working great. I select my device with the app and then it displays my Application name on my screen and do nothing. The reason must be in this debug message.

[v1.9] mApiClient or mRemoteMediaPlayer is null, so will not proceed

But I have no idea what causes this problem. Any help would be appreciated, thanks.