How to configure Eclipse to properly load a plugin?

asked 2011-05-15 17:01:14 -0500

Bart
856 ●15 ●18 ●36

updated 2014-01-28 17:09:41 -0500

ngrennan
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I am trying to use Eclipse to debug the navigation stack (or debug how I am mis-using the stack). I have created an Eclipse project for move_base (make eclipse-project in move_base package), but am unsure how to deal with the plugins that need to be loaded. During initialization of the MoveBase class I get the following error:

[rospack] couldn't find package [nav_core]
terminate called after throwing an instance of 'pluginlib::LibraryLoadException'
  what():  rospack could not find the nav_core package containing nav_core::BaseGlobalPlanner

I appreciate that many ROS developers use command line tools, but I have enjoyed using Eclipse on simpler projects. Is there an Eclipse project configuration step that I am likely missing to allow loading/debugging of plugins?

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Hi, are you starting eclipse from the command line, to get all your environment variables (ROS_PACKAGE_PATH, etc...). I'm not really sure if that's your problem as I'm not using eclipse myself, but I remember reading something about this a while ago. Cheers

Ugo ( 2011-05-15 20:13:12 -0500 )edit

I'm launching it off a program launcher, but I set up the ROS environment variables in the Launch Configuration Properties/Environment window. It works fine for ROS nodes distributed across multiple computers.

Bart ( 2011-05-16 14:04:43 -0500 )edit

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answered 2011-05-18 02:22:26 -0500

Bart
856 ●15 ●18 ●36

The Eclipse environment variables needed to define ROS_PACKAGE_PATH. Added this variable and problem solved.

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answered 2011-05-24 15:47:55 -0500

Poseidonius

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updated 2011-05-24 15:48:32 -0500

Did you generate the Eclipse project file via cmake?

make eclipse-project

In my experience, this file organizes the integration of all required paths ... Take a view to ROS IDEs

Best wishes

Poseidonius

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Yes, I used make eclipse-project, but it doesn't automatically pull in the ROS environment variables and I missed manually configuring the ROS_PACKAGE_PATH. There is still some awkwardness as you can't set breakpoints in plugins until the main program is running, but it does what I need.

Bart ( 2011-05-24 17:54:49 -0500 )edit

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answered 2011-05-16 05:49:58 -0500

Asomerville
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I'm not sure if this will work, but including the package which contains the plugin in the manifest.xml and then rebuilding the eclipse project (and restarting Eclipse) is worth trying.

I think eclipse might only set up the paths correctly for dependencies.

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nav_core, pluginlib, base_local_planner, costmap_2d and navfn were already defined as dependent packages in the move_base manifest.xml before I did the make eclipse-project.

Bart ( 2011-05-16 14:58:50 -0500 )edit

Does it fail in the same way when started from the command line?

Asomerville ( 2011-05-16 15:12:09 -0500 )edit

Good point. I seem to have broken the move_base node while thrashing around to get Eclipse working, as it no longer runs from the launch file I copied from move_base_turtlebot.launch.

Bart ( 2011-05-16 16:00:14 -0500 )edit

Reloaded navigation stack, ran make eclipse-project, imported into Eclipse. Still have the original problem in Eclipse, but move_base works from command line or launch file.

Bart ( 2011-05-16 16:21:44 -0500 )edit

and can you roscd to nav_core from the command line?

Asomerville ( 2011-05-16 17:25:18 -0500 )edit

Yes. As well, I can launch move_base within gdb by adding launch-prefix="xterm -e gdb --args" to move_base.launch.

Bart ( 2011-05-16 17:32:54 -0500 )edit

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How to configure Eclipse to properly load a plugin?

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