@小鱼
我也是这种错误，启动gazebo报一下错误

[Publisher.cc:135] Queue limit reached for topic /gazebo/default/physics/contacts, deleting message. This warning is printed only once

-vm:~$ gazebo --verbose -s libgazebo_ros_init.so -s libgazebo_ros_factory.so Gazebo multi-robot simulator, version 11.10.2 Copyright (C) 2012 Open Source Robotics Foundation. Released under the Apache 2 License. http://gazebosim.org [Msg] Waiting for master. Gazebo multi-robot simulator, version 11.10.2 Copyright (C) 2012 Open Source Robotics Foundation. Released under the Apache 2 License. http://gazebosim.org [Msg] Waiting for master. [Msg] Connected to gazebo master @ http://127.0.0.1:11345 [Msg] Publicized address: 192.168.247.128 [Msg] Connected to gazebo master @ http://127.0.0.1:11345 [Msg] Publicized address: 192.168.247.128 [Msg] Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway. [Msg] Loading world file [/usr/share/gazebo-11/worlds/empty.world] [**Wrn] [Publisher.cc:135] Queue limit reached for topic /gazebo/default/physics/contacts, deleting message. This warning is printed only once.** context mismatch in svga_surface_destroy context mismatch in svga_surface_destroy **[Wrn] [Publisher.cc:135] Queue limit reached for topic /gazebo/default/user_camera/pose, deleting message. This warning is printed only once.**