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failed to create base_local_planner after changing global planner

I want to do the comparison of global planning methods available in navigation stack. When I change global planner of move_base from navfn to carrot_planner I`m getting following error:

Failed to create the base_local_planner/TrajectoryPlannerROS planner, are you sure it is properly registered and that the containing library is built? Exception: MultiLibraryClassLoader: Could not create class of type base_local_planner::TrajectoryPlannerROS

[move_base-2] process has died

In order to change planning method I modified the launch file by including this line .

failed to create base_local_planner after changing global planner

I want to do the comparison of global planning methods available in navigation stack. When I change global planner of move_base from navfn to carrot_planner I`m getting following error:

Failed to create the base_local_planner/TrajectoryPlannerROS planner, are you sure it is properly registered and that the containing library is built? Exception: MultiLibraryClassLoader: Could not create class of type base_local_planner::TrajectoryPlannerROS

[move_base-2] process has died

In order to change planning method I modified the launch file by including this line . line

<param name="base_global_planner" value="carrot_planner/CarrotPlanner"/>

Why is this happening?

failed to create base_local_planner after changing global planner

I want to do the comparison of global planning methods available in navigation stack. When I change global planner of move_base from navfn to carrot_planner I`m getting following error:

Failed to create the base_local_planner/TrajectoryPlannerROS planner, are you sure it is properly registered and that the containing library is built? Exception: MultiLibraryClassLoader: Could not create class of type base_local_planner::TrajectoryPlannerROS

[move_base-2] process has died

In order to change planning method I modified the launch file by including this line

<param name="base_global_planner" value="carrot_planner/CarrotPlanner"/>

Why is this happening?