diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/meshes/Marker0.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/meshes/Marker0.dae
index ad2e324..401e080 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/meshes/Marker0.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/meshes/Marker0.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_4.sdf
index f99954a..58d7ff2 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_5.sdf
index c51280d..8a7628c 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.config
index 0b661f4..ce0e772 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.sdf
index 4f02e47..20c0cb3 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker0/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/meshes/Marker1.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/meshes/Marker1.dae
index 08d0848..44f7229 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/meshes/Marker1.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/meshes/Marker1.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_4.sdf
index 1687006..8b0abfb 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_5.sdf
index 740f5b5..59197c8 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.config
index 7ef2b4a..18ed002 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.sdf
index 6cd2d85..7a40b08 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker1/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/meshes/Marker2.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/meshes/Marker2.dae
index ecdc879..25f152a 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/meshes/Marker2.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/meshes/Marker2.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_4.sdf
index f1c30ea..b3340b4 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_5.sdf
index 60ebfcd..cd48b19 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.config
index fa54371..940ffb1 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.sdf
index 9535a06..36e3c3a 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker2/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/meshes/Marker3.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/meshes/Marker3.dae
index 27855f8..b5fa89f 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/meshes/Marker3.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/meshes/Marker3.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_4.sdf
index 0c28bb6..f78492e 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_5.sdf
index 258eaf3..2c84cbd 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.config
index 047cf17..7246417 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.sdf
index 02c5725..fb28988 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker3/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/meshes/Marker4.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/meshes/Marker4.dae
index 58d0649..63da8bc 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/meshes/Marker4.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/meshes/Marker4.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_4.sdf
index 13c1d8f..b8912d2 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_5.sdf
index c55d5be..9b91f6a 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.config
index 2e9fd7e..c8623db 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.sdf
index 7000c8b..c3c6f3d 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker4/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/meshes/Marker5.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/meshes/Marker5.dae
index 67f2252..6b305af 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/meshes/Marker5.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/meshes/Marker5.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_4.sdf
index 47e28d7..f31aa54 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_5.sdf
index 2926bca..fb79020 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.config
index 0f0e870..8d73e60 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.sdf
index 8b06c0f..42749b5 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker5/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/meshes/Marker6.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/meshes/Marker6.dae
index 956fb0c..d0ab802 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/meshes/Marker6.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/meshes/Marker6.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_4.sdf
index 364dc67..3aea108 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_5.sdf
index 5fadb5e..948f19d 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.config
index c4f59c6..5be1227 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.sdf
index 89237ef..3db62b0 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker6/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/meshes/Marker7.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/meshes/Marker7.dae
index f486fbf..5793c1c 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/meshes/Marker7.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/meshes/Marker7.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_4.sdf
index 1c70048..76a2dd9 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_5.sdf
index 8816016..74d3411 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.config
index b4af58e..3208524 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.sdf
index ed5c25e..2048e4c 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker7/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/meshes/Marker8.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/meshes/Marker8.dae
index 0ec7bf6..91414b2 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/meshes/Marker8.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/meshes/Marker8.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_4.sdf
index a9734b6..f59d980 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_5.sdf
index 9033c46..15b5f35 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.config
index 317baae..14846ba 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.sdf
index 3cc8af3..80d6317 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker8/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/meshes/Marker9.dae b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/meshes/Marker9.dae
index dedced0..1aae54c 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/meshes/Marker9.dae
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/meshes/Marker9.dae
@@ -122,4 +122,4 @@
   <scene>
     <instance_visual_scene url="#Scene"/>
   </scene>
-</COLLADA>
\ No newline at end of file
+</COLLADA>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_4.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_4.sdf
index 3668e94..b90117f 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_4.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_4.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_5.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_5.sdf
index 603a5ea..7388dec 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_5.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model-1_5.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.config b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.config
index 4daf6ea..c77b5ef 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.config
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.config
@@ -14,4 +14,4 @@
     A model of AR marker
   </description>
 
-</model>
\ No newline at end of file
+</model>
diff --git a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.sdf b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.sdf
index 4f51fc4..73febd2 100644
--- a/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.sdf
+++ b/turtlebot3_manipulation_gazebo/models/turtlebot3_home_service_challenge/marker9/model.sdf
@@ -11,4 +11,4 @@
       </visual>
     </link>
   </model>
-</sdf>
\ No newline at end of file
+</sdf>