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I am trying to use p3atGazeboRos plugin from https://github.com/balakumar-s/p3atGazeboRos. It is same plugin made available by Balakumar. I am using ROS Hydro, Gazebo 1.90 on Ubuntu12.04 (with precompiled binaries).

On launching pioneer3at.gazebo.launch, gazebo dies with error code 139. The following errors are reported in logs. I am typing these below: 1. rosmaster.master [ERROR] File .../python2.7/dist-packages/rosmaster/master_api.py valid_fcode() .. line 116 -> 406 -> 161 value error. Namespace must be global.

1. rosmaster.threadpool ERROR rosmaster/threadpool.py line number 218 run python2.7/socket.py line number 571 error 111 connections refused.

I do not know what are cause of these. thanks nitin