Fix missing rclcpp_components dependecy.

Author: destogl

image_sub/CMakeLists.txt

@@ -39,6 +39,7 @@ endif()
 add_executable(sub_img src/sub_img.cpp)
 ament_target_dependencies(sub_img
   "rclcpp"
+  "rclcpp_components"
   "sensor_msgs"
   "std_msgs"
   "OpenCV"
@@ -55,4 +56,4 @@ install(
   DESTINATION share/${PROJECT_NAME}
 )
 
-ament_package()
+ament_package()