NavMesh Build Failed: Error Occurred When Running sdg_scheduler.py in the Rivermark Scene

Omniverse Isaac Sim
1

When the asset path in default_config.yaml is changed from warehouse to rivermark and the following command is executed:

"NavMesh building failed. Please check whether the stage has a valid NavmeshVolume. Will not load assets to scene."

this message is output and execution halts. This error does not occur in the warehouse scene, so asset generation completes without issues in that case.

I’m looking for a way to prevent the error from appearing, or to disable NavMesh entirely—are there any known workarounds?

I referred to the following Q&A but the result didn’t change:

isaacsim.replicator.agent:
version: 0.5.1
global:
    seed: 123456
    simulation_length: 300
scene:
    asset_path: https://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/4.5/Isaac/Environments/Outdoor/Rivermark/rivermark.usd
    camera_num: 5
character:
    asset_path: [Isaac Sim Assets Path]/Isaac/People/Characters/
    command_file: default_command.txt
    filters: ''
    num: 10
robot:
    command_file: default_robot_command.txt
    nova_carter_num: 0
    transporter_num: 0
    write_data: false
replicator:
    writer: IRABasicWriter
    parameters:
        output_dir:
        rgb: true
        object_info_bounding_box_2d_tight: true
        object_info_bounding_box_2d_loose: true
        object_info_bounding_box_3d: true

Isaac Sim Version

4.5.0

Operating System

Ubuntu 22.04