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tf_old_data problem with gazebo

Hi,

I have a problem with gazebo. When run a world and spawn a robot and start robot_state_publisher, I get the following output:

"tf_old_data ignoring data from the past for frame wheel_left".

All of my four wheels and the axis have this tf problem but not the sensors. In teh tf tree that I generated with

"rosrun tf view_frame",

I can also see a negative time for the wheels. But I have no idea what could trigger my error.

Does anyone has an idea and could help me?