2D Plot error

[hefc2016]

Hello，

I try to visualize the detection points in webviz using 2d plot panel. I define ROS message according to the help of 2d panel, and record some rosbag file, but there is one error when replay in webviz.

The ROS message is listed in below, could anyone help how to fix this issue?

---

header: seq: 399 stamp: secs: 1621418617 nsecs: 599670406 frame_id: '' title: '' xAxisLabel: '' yAxisLabel: '' gridColor: '' points:

order: 0
label: "circle-point"
backgroundColor: ''
borderColor: ''
borderDash: []
borderWidth: 0
pointBackgroundColor: ''
pointBorderColor: ''
pointBorderWidth: ''
pointRadius: ''
pointStyle: "circle"
lineTension: 0.0
data: 
  - 
    x: 0.0
    y: 0.0
    z: 0.0
  - 
    x: 8.0
    y: 10.0
    z: 0.0
  - 
    x: 0.0
    y: 0.0
    z: 0.0

---