cmake error: attempt to add link library

edit

Hi, as starting point to work with Moveit and my custom robot i downloaded and modified

xxx://github.com/ros-planning/moveit_pr2

i put the folder in my catkin workspace under /src, renamed everything according to my robot and used a lot of examples.

Now i need to launch some original pr2 tutorial so i downloaded same package again this time i left everything intact but when i launch catkin_make i get lot's linking errors like this one:

CMake Error at moveit_pr2-hydro-devel/pr2_moveit_tutorials/planning/CMakeLists.txt:18 (target_link_libraries): Attempt to add link library "/opt/ros/hydro/lib/libimage_transport.so" to target "move_group_interface_tutorial" which is not built in this directory.

If I delete the modified package version I use with my custom robot everything compile fine but then i can't launch the examples anymore. If I launch

rospack find pr2_moveit_tutorials

I see correctly:

/home/gabri/catkin_ws/src/moveit_pr2-hydro-devel/pr2_moveit_tutorials

but when I launch the tutorial with:

roslaunch pr2_moveit_tutorials motion_planning_interface_tutorial.launch

I get this error:

[motion_planning_interface_tutorial.launch] is neither a launch file in package [pr2_moveit_tutorials] nor is [pr2_moveit_tutorials] a launch file name

What am I missing? Thanks