Not able to run basic usage examples

[ParvezAlam123]

Hello All, I am trying to run following basic code

import argparse
import numpy as np
import os
import cv2
import vista
from vista.utils import transform
from vista.entities.agents.Dynamics import tireangle2curvature
trace_path = ["/home/parvez_alam/Downloads/vista_traces/20210726-131322_lexus_devens_center"]

def main(trace_path):
   world = vista.World(trace_path, trace_config={'road_width': 4})
   car = world.spawn_agent(
   config={
        'length': 5.,
        'width': 2.,
        'wheel_base': 2.78,
        'steering_ratio': 14.7,
        'lookahead_road': True
    })

camera = car.spawn_camera(config={
    'size': (200, 320),
})
display = vista.Display(world)

world.reset()
display.reset()

while not car.done:
    action = follow_human_trajectory(car)
    car.step_dynamics(action)
    car.step_sensors()

    vis_img = display.render()
    cv2.imshow('Visualize RGB', vis_img[:, :, ::-1])
    cv2.waitKey(20)

def follow_human_trajectory(agent):
    action = np.array([
       agent.trace.f_curvature(agent.timestamp),
       agent.trace.f_speed(agent.timestamp)
    ])
    return action

main(trace_path)

But it is showing following error 2023-08-01 16:24:26,442::WARNING::[vista.entities.sensors.EventCamera.] Fail to import module for event camera. Remember to do source /openeb/build/utils/scripts/setup_env.shCan ignore this if not using it 2023-08-01 16:24:27,060::WARNING::[vista.core.Trace._divide_to_good_segments] No video_label.csv 2023-08-01 16:24:28,728::WARNING::[vista.entities.sensors.Camera.reset] No flow data Traceback (most recent call last): File "vista1.py", line 54, in main(trace_path) File "vista1.py", line 37, in main vis_img = display.render() File "/home/parvez_alam/.local/lib/python3.8/site-packages/vista/core/Display.py", line 227, in render patch = PolygonPatch(patch, File "/home/parvez_alam/.local/lib/python3.8/site-packages/descartes/patch.py", line 87, in PolygonPatch return PathPatch(PolygonPath(polygon), **kwargs) File "/home/parvez_alam/.local/lib/python3.8/site-packages/descartes/patch.py", line 62, in PolygonPath vertices = concatenate([ File "/home/parvez_alam/.local/lib/python3.8/site-packages/descartes/patch.py", line 63, in concatenate([asarray(t.exterior)[:, :2]] + IndexError: too many indices for array: array is 0-dimensional, but 2 were indexed