kinect2_viewer stopes at "starting receiver"

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Hi, i had already install the ROS indigo, Setup my ROS environment and install libfreenect2. All was nice, but when i start kinect2_viewer it just stops at line "starting receiver". I don't see any window with a Photo-stream.

I run first:

roslaunch kinect2_bridge kinect2_bridge.launch

and i see there: waiting for clients to connect

then i start

rosrun kinect2_viewer kinect2_viewer

and receive: starting receiver...

In the terminal first terminal i have a flow of messages like [Error] [DepthPacketStreamParser] Packet buffer is NULL

I don't see any window with a Video-stream from my Kinect.

Can anyone help me?

p.s. sorry for my english