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使用 rostopic echo /system_monitor/report 的错误

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YSDY 最后由编辑

使用这个语句后，显示 WARNING: topic [/system_monitor/report] does not appear to be published yet ，请问有人知道如何解决吗？
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xiaoqiang @YSDY 最后由编辑

@ysdy startup服务没有正常启动，roslaunch startup startup.launch排除启动错误
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