problem with gazebo_urdf_spawner [closed]

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Hey, I am trying to build an Ackermann model based on the CAT vehicle package. Since today I get the following error when I try to spawn the model via a launch file, even though it has worked before and I haven't changed anything in the files:

[INFO] [WallTime: 1471962070.626981] [0.000000] Controller Spawner: Waiting for service controller_manager/load_controller
Service call failed: transport error completing service call: unable to receive data from sender, check sender's logs for details
Segmentation fault (core dumped)
[gazebo-1] process has died [pid 16208, exit code 139, cmd /home/gleb/slam_simulation/src/gazebo_ros_pkgs/gazebo_ros/scripts/gzserver -e ode /home/gleb/slam_simulation/src/catvehicle-1.1.0pre/src/azcar_sim/worlds/skidpan.world __name:=gazebo __log:=/home/gleb/.ros/log/874b8914-6939-11e6-9099-90004e6484d5/gazebo-1.log].
log file: /home/gleb/.ros/log/874b8914-6939-11e6-9099-90004e6484d5/gazebo-1*.log
[azcar_sim/urdf_spawnerazcar_sim-2] process has finished cleanly
log file: /home/gleb/.ros/log/874b8914-6939-11e6-9099-90004e6484d5/azcar_sim-urdf_spawnerazcar_sim-2*.log
[WARN] [WallTime: 1471962100.880121] [0.000000] Controller Spawner couldn't find the expected controller_manager ROS interface.
[azcar_sim/controller_spawnerazcar_sim-3] process has finished cleanly
log file: /home/gleb/.ros/log/874b8914-6939-11e6-9099-90004e6484d5/azcar_sim-controller_spawnerazcar_sim-3*.log

I don't have any idea what could cause the problem and don't know how to resolve it. Could anyone give an advice by any chance?

Thank you in advance!