[ros-users] Problem launching pr2_dashboard and friends

[Ken Conley]

The cturtle setup.sh files append to your PYTHONPATH, which is
different from the boxturtle behavior, which reset your PYTHONPATH. It
sounds like we may need to figure out some fancier way of setting the
cturtle path to not result in this condition.

FYI: installing cturtle via deb should place the setup files in
/opt/ros/cturtle. The /etc/ layout is currently specific to the PR2
configuration. Your standard procedure for using it should simply be
to source the cturtle setup file instead of the boxturtle setup file.

 - Ken

On Fri, Aug 6, 2010 at 2:27 AM, Anand Atreya <anand at atreya.us> wrote:
> Thanks, Ken.  It looks like the PYTHONPATH was the culprit.  Boxturtle's
> roslib was first since the .bashrc was still loading boxturtle's setup.bash.
>
> Is there a standard procedure for using cturtle (or some other distro) on a
> robot with boxturtle installed as the default?  The /etc/ros/cturtle
> directory is missing, and I know that's the proper way to get all the
> necessary environment variables set.  Should that have been created as part
> of a cturtle debian package?
>
> Thanks.
> -- Anand
>
> On Thu, Aug 5, 2010 at 11:04 PM, Ken Conley <kwc at willowgarage.com> wrote:
>>
>> Hi Anand,
>>
>> What's your PYTHONPATH? Do you have two copies of roslib on it? What
>> does roswtf output?
>>
>>  - Ken
>>
>> On Thu, Aug 5, 2010 at 10:45 PM, Anand Atreya <aatreya at stanford.edu>
>> wrote:
>> > I'm getting a Python error when I try to launch pr2_dashboard.
>> > Similarly,
>> > and perhaps for a related reason, I'm also unable to use
>> > pr2_tabletop_manipulation.launch to start the grasping pipeline.  The
>> > errors
>> > I'm getting are below.  Any ideas what might be wrong?  I'm guessing
>> > it's
>> > something simple, but I've been poking around for a while to no avail.
>> >
>> > I'm running the most recent Cturtle debs on our PR2.
>> >
>> > Thanks.
>> > -- Anand
>> >
>> >
>> > $ rosrun pr2_dashboard pr2_dashboard
>> > Traceback (most recent call last):
>> >   File
>> > "/opt/ros/cturtle/stacks/pr2_gui/pr2_dashboard/scripts/pr2_dashboard",
>> > line
>> > 50, in <module>
>> >     import pr2_dashboard
>> >   File
>> >
>> > "/opt/ros/cturtle/stacks/pr2_gui/pr2_dashboard/src/pr2_dashboard/__init__.py",
>> > line 1, in <module>
>> >     from pr2_frame import *
>> >   File
>> >
>> > "/opt/ros/cturtle/stacks/pr2_gui/pr2_dashboard/src/pr2_dashboard/pr2_frame.py",
>> > line 43, in <module>
>> >     from robot_monitor.robot_monitor_panel import RobotMonitorPanel
>> >   File
>> >
>> > "/opt/ros/cturtle/stacks/diagnostics/robot_monitor/src/robot_monitor/robot_monitor_panel.py",
>> > line 44, in <module>
>> >     from diagnostic_msgs.msg import DiagnosticArray, DiagnosticStatus,
>> > KeyValue
>> >   File
>> >
>> > "/opt/ros/cturtle/stacks/common_msgs/diagnostic_msgs/src/diagnostic_msgs/msg/__init__.py",
>> > line 1, in <module>
>> >     from _DiagnosticArray import *
>> >   File
>> >
>> > "/opt/ros/cturtle/stacks/common_msgs/diagnostic_msgs/src/diagnostic_msgs/msg/_DiagnosticArray.py",
>> > line 311, in <module>
>> >     _struct_I = roslib.message.struct_I
>> > AttributeError: 'module' object has no attribute 'struct_I'
>> >
>> >
>> >
>> > $ roslaunch pr2_tabletop_manipulation_launch
>> > pr2_tabletop_manipulation.launch
>> > Traceback (most recent call last):
>> >   File "/opt/ros/cturtle/ros/bin/roslaunch", line 2, in <module>
>> >     from ros import roslaunch
>> >   File "/opt/ros/boxturtle/ros/core/roslib/src/ros/__init__.py", line
>> > 63, in
>> > __getattr__
>> >     return __import__(name)
>> >   File "/opt/ros/cturtle/ros/tools/roslaunch/src/roslaunch/__init__.py",
>> > line 43, in <module>
>> >     from roslaunch.config import ROSLaunchConfig
>> >   File "/opt/ros/cturtle/ros/tools/roslaunch/src/roslaunch/config.py",
>> > line
>> > 49, in <module>
>> >     import roslaunch.loader
>> >   File "/opt/ros/cturtle/ros/tools/roslaunch/src/roslaunch/loader.py",
>> > line
>> > 45, in <module>
>> >     from roslib.names import make_global_ns, ns_join, PRIV_NAME,
>> > load_mappings, is_legal_name, canonicalize_name
>> > ImportError: cannot import name canonicalize_name
>> >
>> >
>> >
>> >
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>> >
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