File “/opt/ros/melodic/lib/python2.7/dist-packages/roslib/manifest.py“, line 146, in parse

想要弄一个实时跑的ManhattanSLAM，换成ROS接口，编译 ManhattanSLAM-ros 报错：

Call Stack (most recent call first):
  CMakeLists.txt:3 (include)


[rosbuild] Building package ManhattanSLAM-ros
[rosbuild] Error from syntax check of ManhattanSLAM-ros/manifest.xml
Traceback (most recent call last):
  File "", line 1, in 
  File "/opt/ros/melodic/lib/python2.7/dist-packages/roslib/manifest.py", line 146, in parse_file
    return roslib.manifestlib.parse_file(Manifest(), file)
  File "/opt/ros/melodic/lib/python2.7/dist-packages/roslib/manifestlib.py", line 532, in parse_file
    raise ValueError('Invalid/non-existent manifest file: %s' % file)
ValueError: Invalid/non-existent manifest file: manifest.xml
CMake Error at /opt/ros/melodic/share/ros/core/rosbuild/private.cmake:77 (message):
  [rosbuild] Syntax check of ManhattanSLAM-ros/manifest.xml failed; aborting
Call Stack (most recent call first):
  /opt/ros/melodic/share/ros/core/rosbuild/public.cmake:174 (_rosbuild_check_manifest)
  CMakeLists.txt:4 (rosbuild_init)

解决方法：
从ORB——SLAM2上copy过来一个manifest.xml，完后将里面的名字换成对应的ManhattanSLAM-ros即可。