message: Set find package to quiet? Hope this fixes it.
diff: @@ -16,7 +16,7 @@ set(PROTO_DEFNS proto/voxblox/Block.proto
  proto/voxblox/Layer.proto)
  set(ADDITIONAL_LIBRARIES "")
  -find_package(protobuf_catkin)
  +find_package(protobuf_catkin QUIET)
  if (protobuf_catkin_FOUND)
  message(STATUS "Using protobuf_catkin")
  list(APPEND catkin_INCLUDE_DIRS ${protobuf_catkin_INCLUDE_DIRS})
  