Error when running markers.launch

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OS : Ubuntu 14.04 LTS ROS : Indigo

I'm studying Stockroom_bot. (Book : Programming Robots with ROS, Ch.14) My source same the book's example.

I've just finished at go_to_bin.sh. So next step is 'markers.launch' There is an error when I run the markers.launch.

1. markers.launch - Error message is this:

[ WARN] [1533512740.109920017]: Command line arguments are deprecated. Consider using ROS parameters and remappings.
**[ INFO] [1533512740.112981476]: Subscribing to info topic
[ INFO] [1533512740.136521085]: AR tracker reconfigured: ENABLED 1.00 12.30 0.20 0.00
terminate called after throwing an instance of 'ros::InvalidNameException'
  what():  Character [0] is not valid as the first character in Graph Resource Name [0.8].  Valid characters are a-z, A-Z, / and in some cases ~.
           [ar_track_alvar-1] process has died [pid 13581, exit code -6, cmd /opt/ros/indigo/lib/ar_track_alvar/individualMarkersNoKinect 12.3 0.2   0.8 /head_camera/rgb/image_raw   /head_camera/rgb/camera_info /base_link __name:=ar_track_alvar __log:=/home/aaaabbbb/.ros/log/6bf17ba4-9909-11e8-ad84-645106a90f90/ar_track_alvar-1.log].
             log file: /home/aaaabbbb/.ros/log/6bf17ba4-9909-11e8-ad84-645106a90f90/ar_track_alvar-1*.log**

2. stockroom_bot.launch - error message is this

ERROR] [1533263314.110014050, 10.048000000]: Client [/ar_track_alvar] wants topic /head_camera/rgb/image_raw to have datatype/md5sum [sensor_msgs/CameraInfo/c9a58c1b0b154e0e6da7578cb991d214], but our version has [sensor_msgs/Image/060021388200f6f0f447d0fcd9c64743]. Dropping connection.

What is that means ? Why the ROS can't execute the markers.launch ? I don't know what I can do. And, ROS don't make the log file /home/...ar_track_alvar-1*.log

Please help me...

1. This is my 'markers.launch' source

   <launch> <arg name="marker_size" default="12.3"/> <arg name="max_new_marker_error" default="0.2"/> <arg name="max_track_error" default="0.8"/> <arg name="cam_image_topic" default="/head_camera/rgb/image_raw"/> <arg name="cam_info_topic" default="/head_camera/rgb/camera_info"/> <arg name="output_frame" default="/base_link"/> <node name="ar_track_alvar" pkg="ar_track_alvar" type="individualMarkersNoKinect" respawn="false" output="screen" args="$(arg marker_size) $(arg max_new_marker_error) \ $(arg max_track_error) $(arg cam_image_topic) \ $(arg cam_info_topic) $(arg output_frame)"/> <arg name="tag_rot" default="0 0 0 0 0 -1.57"/> <arg name="tag_trans" default="0 -0.28 -0.1 0 0 0"/>

   <node pkg="tf" type="static_transform_publisher" name="ar_0_up" args="$(arg tag_rot) ar_marker_0 ar_0_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_1_up" args="$(arg tag_rot) ar_marker_1 ar_1_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_2_up" args="$(arg tag_rot) ar_marker_2 ar_2_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_3_up" args="$(arg tag_rot) ar_marker_3 ar_3_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_4_up" args="$(arg tag_rot) ar_marker_4 ar_4_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_5_up" args="$(arg tag_rot) ar_marker_5 ar_5_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_6_up" args="$(arg tag_rot) ar_marker_6 ar_6_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_7_up" args="$(arg tag_rot) ar_marker_7 ar_7_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_8_up" args="$(arg tag_rot) ar_marker_8 ar_8_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_9_up" args="$(arg tag_rot) ar_marker_9 ar_9_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_10_up" args="$(arg tag_rot) ar_marker_10 ar_10_up 100"/> <node pkg="tf" type="static_transform_publisher" name="ar_11_up" args="$(arg tag_rot) ar_marker_11 ar_11_up 100"/>

   <node pkg="tf" type="static_transform_publisher" name="item_0" args="$(arg tag_trans ...