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

想要弄一個實時跑的ManhattanSLAM，換成ROS接口，編譯 ManhattanSLAM-ros 報錯：

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 "<string>", line 1, in <module>
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)

解決方法：
從ORB——SLAM2上copy過來一個manifest.xml，完後將裡面的名字換成對應的ManhattanSLAM-ros即可。