error playing my *pcap file

[Doublehes]

Hello,

When i was trying to replay my pcap file, something wrong happed:

double@double-7820:~/Documents/slam/ws_velo_loam$ rosrun velodyne_driver velodyne_node _model:=VLP16 _pcap:=/home/double/Documents/slam/lidarvpcap/slide1.pcap _read_once:=true [ INFO] [1600767773.347786443]: Velodyne VLP-16 rotating at 600 RPM [ INFO] [1600767773.350364767]: publishing 76 packets per scan [ INFO] [1600767773.357342848]: Cut at specific angle feature deactivated. [ INFO] [1600767773.369177548]: Reconfigure Request [ INFO] [1600767773.371010518]: expected frequency: 9.921 (Hz) [ INFO] [1600767773.379688453]: Read input file only once. [ INFO] [1600767773.379770453]: Opening PCAP file "/home/double/Documents/slam/lidarvpcap/slide1.pcap" [ WARN] [1600767773.428249406]: Error -2 reading Velodyne packet:

Could you please give me some advice? Thanks

[JWhitleyWork]

Need some basic information:

• Operating System
• ROS version
• Driver installation method (from-source or binary)
• Driver version