Fix CMake errors

CMakeLists.txt

@@ -9,7 +9,6 @@ project(intro_package)
 ## is used, also find other catkin packages
 find_package(catkin REQUIRED COMPONENTS
     roscpp
-    std_msgs
     moveit_ros_planning_interface
 )
 

package.xml

@@ -52,6 +52,7 @@
 
   <depend>roscpp</depend>
   <depend>std_msgs</depend>
+  <depend>moveit_ros_planning_interface</depend>
 
   <!-- The export tag contains other, unspecified, tags -->
   <export>