【ROS】打印話題時 ERROR: Cannot load message class for
輸出一些自定義話題消息時報錯 ERROR: Cannot load message class for [autoware_msgs/VehicleCmd]. Are your messages built? 需要source 該消息所在的工作空間的setup.bash source ...
原文：ERROR: Cannot load message class for [speech_control/command]. Are your messages built?
ubuntu . ROS indigo 問題： 執行查看指定消息的命令，出現下面的錯誤提示，找不到該消息類型。 rostopic echo speech command ERROR: Cannot load message class for speech control command . Are your messages built 解決： 將ros 工作空間中的 devel 和 build ...
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