Problem building octomap_mapping [closed]

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Hi all! i got these errors during catkin_make:

In file included from /home/gordon/catkin_ws/src/octomap_mapping/octomap_server/include/octomap_server/TrackingOctomapServer.h:33:0,
                 from /home/gordon/catkin_ws/src/octomap_mapping/octomap_server/src/TrackingOctomapServer.cpp:30:
/home/gordon/catkin_ws/src/octomap_mapping/octomap_server/include/octomap_server/OctomapServer.h:46:29: fatal error: pcl/conversions.h: No such file or directory
 #include <pcl/conversions.h>
                             ^
compilation terminated.
In file included from /home/gordon/catkin_ws/src/octomap_mapping/octomap_server/include/octomap_server/OctomapServerMultilayer.h:32:0,
                 from /home/gordon/catkin_ws/src/octomap_mapping/octomap_server/src/OctomapServerMultilayer.cpp:30:
/home/gordon/catkin_ws/src/octomap_mapping/octomap_server/include/octomap_server/OctomapServer.h:46:29: fatal error: pcl/conversions.h: No such file or directory
 #include <pcl/conversions.h>
                             ^
compilation terminated.
In file included from /home/gordon/catkin_ws/src/octomap_mapping/octomap_server/src/OctomapServer.cpp:30:0:
/home/gordon/catkin_ws/src/octomap_mapping/octomap_server/include/octomap_server/OctomapServer.h:46:29: fatal error: pcl/conversions.h: No such file or directory
 #include <pcl/conversions.h>
                             ^
compilation terminated.

I already checked the CMakeLists.txt with: https://github.com/sdmiller/pcl/commi...

Now I not sure where went wrong.

Thanks for any help!