[test.launch] is neither a launch file in package

edit

in src there is a package named relaxed_astar including: CMakeLists.text package.xml and launch inside the launch folder there's file name test.launch

when i run this command roslaunch relaxed_astar test.launch

i get in error say

[test.launch] is neither a launch file in package [relaxed_astar] nor is [relaxed_astar] a launch file name
The traceback for the exception was written to the log file

and the test.launch file code is

<launch>
<include file="$(find turtlebot_bringup)/launch/minimal.launch"></include>

  <include file="$(find turtlebot_bringup)/launch/3dsensor.launch">
    <arg name="rgb_processing" value="false" />
    <arg name="depth_registration" value="false" />
    <arg name="depth_processing" value="false" />
    <arg name="scan_topic" value="/scan" />
  </include>

  <arg name="map_file" default="map_folder/your_map_file.yaml"/>
  <node name="map_server" pkg="map_server" type="map_server" args="$(arg map_file)" />

  <arg name="initial_pose_x" default="0.0"/>
  <arg name="initial_pose_y" default="0.0"/>
  <arg name="initial_pose_a" default="0.0"/>
  <include file="$(find turtlebot_navigation)/launch/includes/amcl.launch.xml">
    <arg name="initial_pose_x" value="$(arg initial_pose_x)"/>
    <arg name="initial_pose_y" value="$(arg initial_pose_y)"/>
    <arg name="initial_pose_a" value="$(arg initial_pose_a)"/>
  </include>

  <include file="$(find turtlebot_navigation)/launch/includes/move_base.launch.xml"/>

</launch>