RVIZ2 找不到QT平台插件 Could not find the Qt platform plugin "wayland" in ""

Harry橙

下面是完整的报错信息

ros2@ros2-virtual-machine:~/d2lros/chapt8/fishbot_ws$ ros2 launch fishbot_description display_rviz2.launch.py
[INFO] [launch]: All log files can be found below /home/ros2/.ros/log/2022-08-18-13-44-13-635600-ros2-virtual-machine-5560
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [robot_state_publisher-1]: process started with pid [5572]
[INFO] [joint_state_publisher_gui-2]: process started with pid [5574]
[INFO] [rviz2-3]: process started with pid [5576]
[rviz2-3] qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
[robot_state_publisher-1] [WARN] [1660801457.094932948] [robot_state_publisher]: No robot_description parameter, but command-line argument available.  Assuming argument is name of URDF file.  This backwards compatibility fallback will be removed in the future.
[robot_state_publisher-1] Link laser_link had 0 children
[robot_state_publisher-1] [INFO] [1660801457.720892835] [robot_state_publisher]: got segment base_link
[robot_state_publisher-1] [INFO] [1660801457.720969078] [robot_state_publisher]: got segment laser_link
[rviz2-3] [INFO] [1660801458.613988022] [rviz2]: Stereo is NOT SUPPORTED
[rviz2-3] [INFO] [1660801458.614231508] [rviz2]: OpenGl version: 4.1 (GLSL 4.1)
[rviz2-3] [INFO] [1660801458.957211916] [rviz2]: Stereo is NOT SUPPORTED
[joint_state_publisher_gui-2] qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
[joint_state_publisher_gui-2] [INFO] [1660801460.875772212] [joint_state_publisher_gui]: Centering

Harry橙

@1206768372
程序是找小鱼的复制黏贴的
launch文件

import os
from launch import LaunchDescription
from launch.substitutions import LaunchConfiguration
from launch_ros.actions import Node
from launch_ros.substitutions import FindPackageShare


def generate_launch_description():
    package_name = 'fishbot_description'
    urdf_name = "fishbot_base.urdf"

    ld = LaunchDescription()
    pkg_share = FindPackageShare(package=package_name).find(package_name) 
    urdf_model_path = os.path.join(pkg_share, f'urdf/{urdf_name}')

    #robot_state_publisher_node负责发布机器人模型信息robot_description，并将joint_states数据转换tf信息发布
    robot_state_publisher_node = Node(
        package='robot_state_publisher',
        executable='robot_state_publisher',
        arguments=[urdf_model_path]
        )
    #负责发布机器人关节数据信息，通过joint_states话题发布
    joint_state_publisher_node = Node(
        package='joint_state_publisher_gui',
        executable='joint_state_publisher_gui',
        name='joint_state_publisher_gui',
        arguments=[urdf_model_path]
        )

    rviz2_node = Node(
        package='rviz2',
        executable='rviz2',
        name='rviz2',
        output='screen',
        )

    ld.add_action(robot_state_publisher_node)
    ld.add_action(joint_state_publisher_node)
    ld.add_action(rviz2_node)

    return ld

setup文件

from setuptools import setup
from glob import glob##
import os##

package_name = 'fishbot_description'

setup(
    name=package_name,
    version='0.0.0',
    packages=[package_name],
    data_files=[
        ('share/ament_index/resource_index/packages',
            ['resource/' + package_name]),
        ('share/' + package_name, ['package.xml']),
        (os.path.join('share', package_name, 'launch'), glob('launch/*.launch.py')),##
        (os.path.join('share', package_name, 'urdf'), glob('urdf/**')),##
    ],
    install_requires=['setuptools'],
    zip_safe=True,
    maintainer='root',
    maintainer_email='root@todo.todo',
    description='TODO: Package description',
    license='TODO: License declaration',
    tests_require=['pytest'],
    entry_points={
        'console_scripts': [
        ],
    },
)

小鱼

@1206768372 网上搜了下,这个错误好像是vscode中环境配置造成的,你试试直接在电脑的终端里运行程序看看.