Failed to load nodelet

Hi !

I’m using robot_upstart to load some nodelet at startup.

I’m getting a weird issue, it seems that it fails to load nodelet as I’m getting this kind of fatal error:

Node: /ueye_cam_nodelet_2
Time: 11:14:39.055841859 (2017-10-13)
Severity: Fatal
Published Topics: /rosout

Failed to load nodelet '/ueye_cam_nodelet_2` of type `ueye_cam/ueye_cam_nodelet` to manager `nodelet_manager'

Location:
/tmp/binarydeb/ros-kinetic-nodelet-1.9.10/src/nodelet.cpp:loadNodelet:228

----------------------------------------------------------------------------------------------------

Lauching sudo job-start on foreground is working fine (no permission issue).

Here is my launch file:

<launch>

  <node name="check_ueye_api" pkg="ueye_cam" type="check_ueye_api" required="true" />
  <arg name="nodelet_manager_name" value="nodelet_manager" />
  <arg name="camera_name" value="camera" />

  <node pkg="nodelet" type="nodelet" name="$(arg nodelet_manager_name)" args="manager"/>
  
  <node pkg="nodelet" type="nodelet" name="ueye_cam_nodelet_1" respawn="true"
        args="load ueye_cam/ueye_cam_nodelet $(arg nodelet_manager_name)">
    <param name="camera_name" type="str" value="$(arg camera_name)1" /> <!-- == namespace for topics and services -->
    <param name="camera_topic" type="str" value="image_raw" />
    <param name="camera_id" type="int" value="1" /> <!-- 0 = any camera; 1+: camera ID -->
    <param name="camera_intrinsics_file" type="string" value="" /> <!-- default: ~/.ros/camera_info/<camera_name>.yaml -->
    <param name="camera_parameters_file" type="string" value="" /> <!-- default: ~/.ros/camera_conf/<camera_name>.ini -->

    <param name="ext_trigger_mode" type="bool" value="False" /> 

    <param name="color_mode" type="str" value="rgb8" />
    <param name="image_width" type="int" value="800" />
    <param name="image_height" type="int" value="1200" />
    <param name="image_top" type="int" value="-1" /> <!-- -1: center -->
    <param name="image_left" type="int" value="-1" /> <!-- -1: center -->

    <param name="subsampling" type="int" value="1" /> <!-- supported by only some UEye cameras -->
    <param name="binning" type="int" value="1" /> <!-- supported by only some UEye cameras -->
    <param name="sensor_scaling" type="double" value="1.0" /> <!-- supported by only some UEye cameras -->

    <param name="auto_gain" type="bool" value="True" />
    <param name="master_gain" type="int" value="0" />
    <param name="red_gain" type="int" value="0" />
    <param name="green_gain" type="int" value="1" />
    <param name="blue_gain" type="int" value="16" />
    <param name="gain_boost" type="bool" value="False" />

    <param name="auto_exposure" type="bool" value="True" />
    <param name="exposure" type="int" value="33" /> <!-- in ms -->

    <param name="auto_white_balance" type="bool" value="True" />
    <param name="white_balance_red_offset" type="int" value="0" />
    <param name="white_balance_blue_offset" type="int" value="0" />
    
    <param name="flash_delay" type="int" value="0" /> <!-- in us -->
    <param name="flash_duration" type="int" value="1000" /> <!-- in us -->
    
    <param name="auto_frame_rate" type="bool" value="False" />
    <param name="frame_rate" type="double" value="10.0" />
    <param name="output_rate" type="double" value="0.0" /> <!-- >0: throttle rate for publishing frames -->
    <param name="pixel_clock" type="int" value="24" />

    <param name="flip_upd" type="bool" value="True" />
    <param name="flip_lr"  type="bool" value="False" />
  </node>

<node pkg="nodelet" type="nodelet" name="ueye_cam_nodelet_2"  respawn="true"
        args="load ueye_cam/ueye_cam_nodelet $(arg nodelet_manager_name)">
    <param name="camera_name" type="str" value="$(arg camera_name)2" /> <!-- == namespace for topics and services -->
    <param name="camera_topic" type="str" value="image_raw" />
    <param name="camera_id" type="int" value="2" /> <!-- 0 = any camera; 1+: camera ID -->
    <param name="camera_intrinsics_file" type="string" value="" /> <!-- default: ~/.ros/camera_info/<camera_name>.yaml -->
    <param name="camera_parameters_file" type="string" value="" /> <!-- default: ~/.ros/camera_conf/<camera_name>.ini -->

    <param name="ext_trigger_mode" type="bool" value="False" /> 

    <param name="color_mode" type="str" value="rgb8" />
    <param name="image_width" type="int" value="800" />
    <param name="image_height" type="int" value="1200" />
    <param name="image_top" type="int" value="-1" /> <!-- -1: center -->
    <param name="image_left" type="int" value="-1" /> <!-- -1: center -->

    <param name="subsampling" type="int" value="1" /> <!-- supported by only some UEye cameras -->
    <param name="binning" type="int" value="1" /> <!-- supported by only some UEye cameras -->
    <param name="sensor_scaling" type="double" value="1.0" /> <!-- supported by only some UEye cameras -->

    <param name="auto_gain" type="bool" value="True" />
    <param name="master_gain" type="int" value="0" />
    <param name="red_gain" type="int" value="0" />
    <param name="green_gain" type="int" value="1" />
    <param name="blue_gain" type="int" value="16" />
    <param name="gain_boost" type="bool" value="False" />

    <param name="auto_exposure" type="bool" value="True" />
    <param name="exposure" type="int" value="33" /> <!-- in ms -->

    <param name="auto_white_balance" type="bool" value="True" />
    <param name="white_balance_red_offset" type="int" value="0" />
    <param name="white_balance_blue_offset" type="int" value="0" />
    
    <param name="flash_delay" type="int" value="0" /> <!-- in us -->
    <param name="flash_duration" type="int" value="1000" /> <!-- in us -->
    
    <param name="auto_frame_rate" type="bool" value="False" />
    <param name="frame_rate" type="double" value="10.0" />
    <param name="output_rate" type="double" value="0.0" /> <!-- >0: throttle rate for publishing frames -->
    <param name="pixel_clock" type="int" value="24" />

    <param name="flip_upd" type="bool" value="True" />
    <param name="flip_lr"  type="bool" value="False" />
  </node>

<node name="web_video" type="web_video_server" pkg="web_video_server" respawn="true">
<param name="type" value="vp8"/>
<param name="address" value="10.42.0.1"/>
</node>
 <node pkg="img_saver" type="img_saver_node" name="img_saver"/>
</launch>

[gui2dev]

@ejalaa12 we use the same solution as you do. Specifying after ueye in the.service file.

[mikepurvis]

@ejalaa12 Yes, but obviously this mostly just matters for the cases where you actually have external dependencies, so basically, device drivers.