ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
1 | initial version |
This is often caused by either of the following issues:
(There are probably more ways to have this happen, but those two have been most common for me.)
ROS relies on each host keeping track of the current time. If you don't have a battery-backed-up clock you'll have to either have network connectivity for NTP or synchronize the clocks in some other way.