rospy.wait_for_message breaks for depth image: Timeout error

[pmwenzel]

Hi,

I am always getting timeout errors related to the depth image which is published by gazebo. I tried to increase the timeout value, but it didn't helped.

Is there any advice on this issue?

        while image_data is None:
            try:
                image_data = rospy.wait_for_message('/camera/depth/image_raw', Image)
            except CvBridgeError as e:
                print(e)

The error is as follows:

File "/opt/ros/kinetic/lib/python2.7/dist-packages/rospy/client.py", line 417, in wait_for_message
raise rospy.exceptions.ROSException("timeout exceeded while waiting for message on topic %s"%topic)
rospy.exceptions.ROSException: timeout exceeded while waiting for message on topic /camera/depth/image_raw

Thanks!

[prateeksamaiya]

I myself having this problem, I dont know the actual problem but a workaround is to keep a value for timeout in rospy.waitformsg