Python 如何解决；rospkg.common.ResourceNotFound“；在ros indigo ubuntu（14.04）中？

我正在用ros做人脸检测机器人。我在运行人脸检测节点时遇到问题，出现以下错误：

arun@arun-Aspire-V5-121:~$ source /usr/share/setup.launch
arun@arun-Aspire-V5-121:~$ source ./ws1/devel/setup.bash
arun@arun-Aspire-V5-121:~$ rosrun exp2 face.py
Traceback (most recent call last):
  File "/home/arun/ws1/src/exp2/scripts/face.py", line 4, in <module>
    roslib.load_manifest('rosopencv')
  File "/opt/ros/indigo/lib/python2.7/dist-packages/roslib/launcher.py", line 62, in load_manifest
    sys.path = _generate_python_path(package_name, _rospack) + sys.path
  File "/opt/ros/indigo/lib/python2.7/dist-packages/roslib/launcher.py", line 93, in _generate_python_path
    m = rospack.get_manifest(pkg)
  File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 164, in get_manifest
    return self._load_manifest(name)
  File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 208, in _load_manifest
    retval = self._manifests[name] = parse_manifest_file(self.get_path(name), self._manifest_name, rospack=self)
  File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 200, in get_path
    raise ResourceNotFound(name, ros_paths=self._ros_paths)
rospkg.common.ResourceNotFound: rosopencv
ROS path [0]=/opt/ros/indigo/share/ros
ROS path [1]=/home/arun/ws1/src
ROS path [2]=/opt/ros/indigo/share
ROS path [3]=/opt/ros/indigo/stacks

arun@arun-Aspire-V5-121:~$source/usr/share/setup.launch
arun@arun-Aspire-V5-121:~$source./ws1/devel/setup.bash
arun@arun-Aspire-V5-121:~$rosrun exp2 face.py
回溯（最近一次呼叫最后一次）：
文件“/home/arun/ws1/src/exp2/scripts/face.py”，第4行，在
roslib.load_清单（'rosopencv'）
文件“/opt/ros/indigo/lib/python2.7/dist packages/roslib/launcher.py”，第62行，在加载清单中
sys.path=\u生成\u python\u路径（包名称，\u rospack）+sys.path
文件“/opt/ros/indigo/lib/python2.7/dist-packages/roslib/launcher.py”，第93行，位于生成python路径中
m=rospack.get_舱单（包装）
文件“/usr/lib/python2.7/dist packages/rospkg/rospack.py”，第164行，在get_清单中
返回自我。加载清单（名称）
文件“/usr/lib/python2.7/dist packages/rospkg/rospack.py”，第208行，在加载清单中
retval=self.\u清单[name]=解析清单文件（self.get\u路径（name）、self.\u清单名称、rospack=self）
文件“/usr/lib/python2.7/dist packages/rospkg/rospack.py”，第200行，在get_路径中
raise ResourceNotFound（名称，ros\u路径=自身。\u ros\u路径）
rospkg.common.ResourceNotFound:rosopencv
ROS路径[0]=/opt/ROS/indigo/share/ROS
ROS路径[1]=/home/arun/ws1/src
ROS路径[2]=/opt/ROS/indigo/share
ROS路径[3]=/opt/ROS/indigo/stacks

实际上，您的系统中缺少python库，您可以先下载并安装该库，然后才能运行脚本

rospkg.common.ResourceNotFound:rosopencv

相当不言自明