On Mo, Dez 16, 2013 at 05:13:19 +0100, Dominick Vanthienen wrote:
>hi,
>
>I've a problem when using rttros.find_rospack('my_package')
>when I use it in a normal lua file: it works
>when I execute this file from within orocos, it does work on my first system but not the second (=it doesn't find the requested package)
>
>the ROS_PACKAGE_PATH is correct in both cases and this env var is accessible
>
>first system:
>ubuntu precise (12.04 lts)
>ros fuerte
>orocos_toolchain 2.06.0.9 (deb pkg)
>
>second system:
>ubuntu precise
>ros groovy
>orocos_toolchain: 2.6.0.14 (deb pkg)
>
>the example test.lua file:
>----------------------
>#!/usr/bin/env rttlua
>print(os.getenv("ROS_PACKAGE_PATH"))
>local rttros = require("rttros")
>res, packpath = pcall(rttros.find_rospack, 'itasc_dsl')
>print(tostring(res))
>print('path')
>print(packpath)
>
>
>the example test.ops script:
>------------------------
>require("print")
>loadService("Deployer","Lua")
>Lua.exec_file("/path/to/test.lua")
>
>the output for system 2: direct execution of the lua file (system 1 gives same output for direct and orocos execution as this) = as expected
>----------------------------------------
>./test.lua
>Real-time memory: 521040 bytes free of 524288 allocated.
>/home/jonas/catkin_ws/src/itasc_tests:/home/jonas/catkin_ws/src/ rtt_pr2_controllers_msgs:/home/jonas/catkin_ws/src:/home/jonas/catkin_ws/src/ itasc_dsl:/home/jonas/catkin_ws/src/uMF:/home/jonas/catkin_ws/src/cob_common:/home/ jonas/catkin_ws/src/youbot-ros-pkg-kdl:/home/jonas/catkin_ws/src/youbot-ros-pkg:/ home/jonas/catkin_ws/src/motion_control:/home/jonas/catkin_ws/src/youbot_hardware:/
>home/jonas/catkin_ws/src/itasc_examples:/home/jonas/catkin_ws/src/ trajectory_generators:/home/jonas/catkin_ws/src/rttlua_completion:/home/jonas/ catkin_ws/src/rFSM:/home/jonas/catkin_ws/src/itasc_comanipulation_demo:/home/jonas/ catkin_ws/src/itasc_robots_objects:/home/jonas/catkin_ws/src/itasc_tasks:/home/jonas/catkin_ws/src/itasc_solvers:/home/jonas/catkin_ws/src/itasc_core:/home/jonas/
>catkin_ws/src/itasc:/opt/ros/groovy/share:/opt/ros/groovy/stacks
>true
>path
>/home/jonas/catkin_ws/src/itasc_dsl
>
>the output for system 2: execution using orocos
>------------------------------------
>rosrun ocl deployer-gnulinux -s test.ops
>Real-time memory: 521040 bytes free of 524288 allocated.
>/home/jonas/catkin_ws/src/itasc_tests:/home/jonas/catkin_ws/src/ rtt_pr2_controllers_msgs:/home/jonas/catkin_ws/src:/home/jonas/catkin_ws/src/ itasc_dsl:/home/jonas/catkin_ws/src/uMF:/home/jonas/catkin_ws/src/cob_common:/home/ jonas/catkin_ws/src/youbot-ros-pkg-kdl:/home/jonas/catkin_ws/src/youbot-ros-pkg:/ home/jonas/catkin_ws/src/motion_control:/home/jonas/catkin_ws/src/youbot_hardware:/
>home/jonas/catkin_ws/src/itasc_examples:/home/jonas/catkin_ws/src/ trajectory_generators:/home/jonas/catkin_ws/src/rttlua_completion:/home/jonas/ catkin_ws/src/rFSM:/home/jonas/catkin_ws/src/itasc_comanipulation_demo:/home/jonas/ catkin_ws/src/itasc_robots_objects:/home/jonas/catkin_ws/src/itasc_tasks:/home/jonas/catkin_ws/src/itasc_solvers:/home/jonas/catkin_ws/src/itasc_core:/home/jonas/
>catkin_ws/src/itasc:/opt/ros/groovy/share:/opt/ros/groovy/stacks
>false
>path
>...y/stacks/orocos_toolchain/ocl/lua/modules/rttros.lua:26: Package path could not be found for itasc_dsl
>
>any idea what caused this?

Yes:

http://www.orocos.org/forum/orocos/orocos-users/lua-fixing-broken-rttros...

and the fix:

https://gitorious.org/orocos-toolchain/ocl/merge_requests/14

For some reason this didn't get merged into 2.7...

>thanks for your help

Markus