Chapter 6: Creating a launch file for the navigation stack error: tf error: canTransform: target_frame map does not exist about effective_robotics_programming_with_ros HOT 2 OPEN

I had the same problem and have got it solved.

1. check robot model
   for me it is "robot1_description/urdf/robot1_base_04.xacro"
2. open the xacro file and check gazebo tag (at the bottom of this file)
   what I saw is:

<gazebo>
    <plugin name="skid_steer_drive_controller"....>
    ...
    <robotBaseFrame>base_link</robotBaseFrame>
    ...
    <broadcastTF>0</broadcastTF>
..
</gazebo>

3. change "base_link" to "base_footprint" and change "0" to "1"

Reasons:

1. the root link of robot1 is base_footprint, and the correct tf tree should be:

   map -> odom-> base_footprint -> base_link
   

   If "base_link" be the robotBaseFrame, it(base_link) will have two parents(base_footprint and odom), which is invalid.

2. broadcastTF determines whether skid_steer_drive_controller will publish tf transform between odomFrame and robotBaseFrame.

   Find details in https://github.com/ros-simulation/gazebo_ros_pkgs/blob/kinetic-devel/gazebo_plugins/src/gazebo_ros_skid_steer_drive.cpp

    if (!_sdf->HasElement("broadcastTF")) {
         ... } // if "broadcastTF" is not existed
    else // if "broadcastTF" exsits, get the value
      this->broadcast_tf_ = _sdf->GetElement("broadcastTF")->Get<bool>();

   if (this->broadcast_tf_) { 
       	transform_broadcaster_->sendTransform(
           tf::StampedTransform(base_footprint_to_odom, current_time,
               odom_frame, base_footprint_frame));
       }

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Likely a duplicate of #4

Will look into it asap.

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