【ROS】打印话题时 ERROR: Cannot load message class for
输出一些自定义话题消息时报错 ERROR: Cannot load message class for [autoware_msgs/VehicleCmd]. Are your messages built? 需要source 该消息所在的工作空间的setup.bash source ...
原文：ERROR: Cannot load message class for [speech_control/command]. Are your messages built?
ubuntu . ROS indigo 问题： 执行查看指定消息的命令，出现下面的错误提示，找不到该消息类型。 rostopic echo speech command ERROR: Cannot load message class for speech control command . Are your messages built 解决： 将ros 工作空间中的 devel 和 build ...
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