md5sum issue when calling service from Python
Hi,
I have a problem when I try to call a Trigger service from Python. There is a service call /ur_hardware_interface/dashboard/program_state of the Universal Robots Driver, I can successfully call the service using the terminal rosservice call /ur_hardware_interface/dashboard/program_state. However when I try to call the service using a simply Python script, it fails
import rospy
from std_srvs.srv import Trigger, TriggerRequest
rospy.wait_for_service('/ur_hardware_interface/dashboard/program_state')
check_connection = rospy.ServiceProxy('/ur_hardware_interface/dashboard/program_state', Trigger)
req = TriggerRequest()
res = check_connection(req)
print("Check connection", res)
I get the following error message:
rospy.service.ServiceException: unable to connect to service: remote error reported: client wants service /ur_hardware_interface/dashboard/program_state to have md5sum 937c9679a518e3a18d831e57125ea522, but it has 522d35a6f2ebd9702cb1e33489e1aa96. Dropping connection.
The universal robot driver is compiled from source in my catkin_ws, it is up-to-date, and has no modifications. The service and the client are running on the same PC so I don't really understand, though just in case I rebuild my catkin_ws but it does not change anything. Additionally, other services published by the Universal Robots Driver do work without problem from the Python script
