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    Hi ,
    <br>
    <br>
    Three weeks ago i tried ROCK-ROS bridging component. Everything
    worked fine. Last week i did ROCK update and just tried to run
    "rock-display",&nbsp; it failed. I even did a fresh rock installation.<br>
    The following things i did:<br>
    1. Include the following text in autoproj/manifest<br>
    <small>&nbsp;&nbsp;&nbsp;&nbsp; package_sets:<br>
      &nbsp;&nbsp;&nbsp;&nbsp; - gitorious: rock-ros/package_set<br>
      &nbsp;&nbsp;&nbsp;&nbsp; layout:<br>
      &nbsp;&nbsp;&nbsp;&nbsp; - rock.ros</small><br>
    2. update and build<br>
    3. run roscore in a terminal<br>
    4. setup ROS_MASTER_URI and typed "rock-display" and got the
    following error:<br>
    <br>
    <small>&nbsp;&nbsp;&nbsp;
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/task_context_base.rb:660:in
      `model=': undefined method `typekit' for nil:NilClass
      (NoMethodError)<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/task_context_base.rb:335:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/ros/node.rb:64:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/ros/name_service.rb:197:in
      `new'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/ros/name_service.rb:197:in
      `get'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/name_service.rb:281:in
      `get'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:190:in
      `call'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:190:in
      `execute'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:553:in
      `spawn_thread'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:528:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:528:in
      `new'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:528:in
      `spawn_thread'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:320:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:319:in
      `times'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:319:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:318:in
      `synchronize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/thread_pool.rb:318:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/async.rb:97:in
      `new'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/async.rb:97:in
      `event_loop'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/name_service.rb:27:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/name_service.rb:108:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/name_service.rb:4:in
      `new'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/async/name_service.rb:4:in
      `name_service'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/base.rb:498:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/base.rb:497:in
      `each'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/orocos.rb/lib/orocos/base.rb:497:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/base/scripts/lib/rock/bundle.rb:418:in
      `initialize'<br>
      &nbsp;&nbsp;&nbsp; from
/home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/gui/vizkit/bin/rock-display:65<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/tools/utilrb/lib/utilrb/event_loop.rb:621:in
      `step'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/gui/vizkit/ruby/lib/vizkit/vizkit.rb:125:in
      `exec'<br>
      &nbsp;&nbsp;&nbsp; from /usr/lib/ruby/1.8/Qt/qtruby4.rb:2427:in `call'<br>
      &nbsp;&nbsp;&nbsp; from /usr/lib/ruby/1.8/Qt/qtruby4.rb:2427:in `invoke'<br>
      &nbsp;&nbsp;&nbsp; from /usr/lib/ruby/1.8/Qt/qtruby4.rb:469:in `qt_metacall'<br>
      &nbsp;&nbsp;&nbsp; from /usr/lib/ruby/1.8/Qt/qtruby4.rb:469:in `method_missing'<br>
      &nbsp;&nbsp;&nbsp; from /usr/lib/ruby/1.8/Qt/qtruby4.rb:469:in `exec'<br>
      &nbsp;&nbsp;&nbsp; from
      /home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/gui/vizkit/ruby/lib/vizkit/vizkit.rb:129:in
      `exec'<br>
      &nbsp;&nbsp;&nbsp; from
/home/natarajan/Workspace/Projects/Spacebot/Softwares/dev/gui/vizkit/bin/rock-display:107</small><big><br>
    </big><br>
    <br>
    Any idea??
    <br>
    <br>
    -Sankar
    <br>
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