Conflict between dynamic reconfigure and depth_image_proc

edit

When I try to build my workspace I get the following error. Can anyone help me?

CMake Error at /home/summitxl/catkin_ws/build/dynamic_reconfigure-master/cmake/dynamic_reconfigure-genmsg.cmake:273 (add_custom_target):
  add_custom_target cannot create target
  "dynamic_reconfigure_generate_messages_py" because another target with the
  same name already exists.  The existing target is a custom target created
  in source directory
  "/home/summitxl/catkin_ws/src/image_pipeline/depth_image_proc".  See
  documentation for policy CMP0002 for more details.
Call Stack (most recent call first):
  /home/summitxl/ros_catkin_ws/install_isolated/share/genmsg/cmake/genmsg-extras.cmake:299 (include)
  dynamic_reconfigure-master/CMakeLists.txt:22 (generate_messages)