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osr_course_pkgs's Issues

Fail to catkin_make when following instructions in order

Website readers will face an error if they follow the website instructions in order (page-by-page). When running catkin_make under Create a ROS workspace in System: ROS, Gazebo, the following error will occur:

CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by "openrave_catkin"
  with any of the following names:

    openrave_catkinConfig.cmake
    openrave_catkin-config.cmake

  Add the installation prefix of "openrave_catkin" to CMAKE_PREFIX_PATH or
  set "openrave_catkin_DIR" to a directory containing one of the above files.
  If "openrave_catkin" provides a separate development package or SDK, be
  sure it has been installed.
Call Stack (most recent call first):
  osr_course_pkgs/osr_openrave/CMakeLists.txt:4 (find_package)

This is due to instruction in Basic tools that tells user to clone the osr_course_pkgs without following immediately with instructions regarding dependencies which only appear later on in System: ROS, Gazebo.

GazeboRosControlPlugin Problem

Hi, i launched the Gazebo but got a problem " GazeboRosControlPlugin missing while using DefaultRobotHWSim, defaults to true ". I am wondering how to solve this problem?

I have a question about friction

I want to grasp the object using robotiq-85.

I installed robotiq-85 to UR3 manipulator and want it to grasp an object.

However, it just slipped the object when it close the finger..

I added friction condition using into the object urdf....

Could you tell me what to do?

Fail to run catkin_make install

Running catkin_make install following the instruction here will fail with the following error:

...
-- Installing: //robots/meshes
CMake Error at robotiq/robotiq_description/cmake_install.cmake:72 (file):
  file INSTALL cannot make directory "//robots/meshes": No such file or
  directory
Call Stack (most recent call first):
  cmake_install.cmake:139 (include)

This is due to changes made in commit c1035e434654107ff2d739e06c41ef2e4cf1d844 in robotiq_description package.

Timed out waiting for /ft_sensor/raw topic

Running the hybrid force control example here will fail with the following error:

nicholas@zbook:~/osr_ws/src/osr_course_pkgs/osr_examples/scripts$ ./force_example.py                 
[INFO] [1565329048.020525, 33.486000]: JointPositionController initialized. ns: 
[INFO] [1565329048.266422, 33.730000]: GripperCommandAction initialized. ns: /
[ERROR] [1565329051.275560, 36.736000]: Timed out waiting for /ft_sensor/raw topic
[INFO] [1565329056.633876, 42.087000]: Going down
Traceback (most recent call last):
  File "./force_example.py", line 114, in <module>
    We = ft_sensor.get_filtered_wrench() - wrench_offset
TypeError: unsupported operand type(s) for -: 'NoneType' and 'NoneType'

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