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turtlemimic.launch error

asked 2016-04-08 14:45:17 -0500

shobhit9618 gravatar image

updated 2016-04-08 15:14:35 -0500

gvdhoorn gravatar image


I used the command as given in the tutorials: roslaunch beginner_tutorials turtlemimic.launch.

On running it, I am receiving the following error:

Traceback (most recent call last):
  File "/opt/ros/jade/lib/python2.7/dist-packages/roslaunch/", line 225, in main
    args = rlutil.resolve_launch_arguments(args)
  File "/opt/ros/jade/lib/python2.7/dist-packages/roslaunch/", line 92, in resolve_launch_arguments
    resolved = roslib.packages.find_resource(args[0], args[1])
  File "/opt/ros/jade/lib/python2.7/dist-packages/roslib/", line 504, in find_resource
  File "/opt/ros/jade/lib/python2.7/dist-packages/catkin/", line 142, in find_in_workspaces
    source_path_to_packages[source_path] = find_packages(source_path)
  File "/usr/lib/python2.7/dist-packages/catkin_pkg/", line 83, in find_packages
    packages = find_packages_allowing_duplicates(basepath, exclude_paths=exclude_paths, exclude_subspaces=exclude_subspaces, warnings=warnings)
  File "/usr/lib/python2.7/dist-packages/catkin_pkg/", line 110, in find_packages_allowing_duplicates
    packages[path] = parse_package(os.path.join(basepath, path), warnings=warnings)
  File "/usr/lib/python2.7/dist-packages/catkin_pkg/", line 370, in parse_package
    return parse_package_string(, filename, warnings=warnings)
  File "/usr/lib/python2.7/dist-packages/catkin_pkg/", line 413, in parse_package_string
    pkg.description = _get_node_value(_get_node(root, 'description'), allow_xml=True, apply_str=False)
  File "/usr/lib/python2.7/dist-packages/catkin_pkg/", line 555, in _get_node
    raise InvalidPackage('The manifest must contain exactly one "%s" tags' % tagname)
InvalidPackage: Invalid package manifest "/home/shobhit/catkin_ws/src/beginner_tutorials/package.xml": The manifest must contain exactly one "description" tags

I have also run the source package. Please help!

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As the last lines said, did you check package.xml in beginner_tutorials ? (if the description tag is correctly written)

F.Brosseau gravatar image F.Brosseau  ( 2016-04-11 02:03:02 -0500 )edit

1 Answer

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answered 2016-10-04 23:28:51 -0500

anirudhyadav1001 gravatar image

your package.xml file might contain error try correcting it as given in correcting package tutorial.

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Asked: 2016-04-08 14:45:17 -0500

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Last updated: Apr 08 '16