play bag读取话题出错 #4
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[DELAYED] Bag Time: 0.000000 Duration: 0.000000 / 66.641774 Delay: 17[ERROR] [1721613142.407539117]: Client [/service_client] wants topic /device_0/sensor_1/Color_0/image/metadata to have datatype/md5sum [sensor_msgs/Image/060021388200f6f0f447d0fcd9c64743], but our version has [diagnostic_msgs/KeyValue/cf57fdc6617a881a88c16e768132149c]. Dropping connection.
[RUNNING] Bag Time: 0.000000 Duration: 0.000000 / 66.641774
您好，我修改了service_client.cpp中yolo_results_pub =
n.advertise<yolo_ros::DetectionMessages>("/untracked_info", 10);
ros::Subscriber imu_sub =
n.subscribe("/device_0/sensor_1/Color_0/image/metadata", 10, img_callback);这一段代码，然后报了如上的错误，请问我是否应该在别的地方修改一下。
在运行别的bag时，我觉得是没有正确读取到topic，rostopic echo出现下述问题rostopic echo /untracked_info
ERROR: Cannot load message class for [yolo_ros/DetectionMessages]. Are your messages built?，请问应当如何修改，感谢指教