Turtlebot not spawning in Gazebo

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Hi

I just installed ros kinetic, gazebo and turtlebot in Ubuntu 16.04. when i run

roslaunch turtlebot_gazebo turtlebot_world.launch

in terminal gazebo opens with the standard obstacles but there is no bot.

I installed gazebo with apt-get.

this is the error i get i terminal:

[spawn_turtlebot_model-4] process has died [pid 11263, exit code 1, cmd /opt/ros/kinetic/lib/gazebo_ros/spawn_model -unpause -urdf -param robot_description -model mobile_base __name:=spawn_turtlebot_model __log:=/home/andreas/.ros/log/d859e7e6-659c-11e7-bff4-a402b924af68/spawn_turtlebot_model-4.log].
log file: /home/andreas/.ros/log/d859e7e6-659c-11e7-bff4-a402b924af68/spawn_turtlebot_model-4*.log

Any help appreciated!

Edit: This is what terminal is showing when i run roslaunch turtlebot3_gazebo turtlebot3_empty_world.launch.

Still no bot showing:

andreas@andreas-N501VW:~$ roslaunch turtlebot3_gazebo turtlebot3_empty_world.launch 
... logging to /home/andreas/.ros/log/10d4ccd2-6677-11e7-bff4-a402b924af68/roslaunch-andreas-N501VW-30220.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

xacro: Traditional processing is deprecated. Switch to --inorder processing!
To check for compatibility of your document, use option --check-order.
For more infos, see http://wiki.ros.org/xacro#Processing_Order
deprecated: xacro tags should be prepended with 'xacro' xml namespace.
Use the following script to fix incorrect usage:
        find . -iname "*.xacro" | xargs sed -i 's#<\([/]\?\)\(if\|unless\|include\|arg\|property\|macro\|insert_block\)#<\1xacro:\2#g'
when processing file: /opt/ros/kinetic/share/turtlebot3_description/urdf/turtlebot3_burger.urdf.xacro

xacro.py is deprecated; please use xacro instead
started roslaunch server http://andreas-N501VW:35697/

SUMMARY
========

PARAMETERS
 * /robot_description: <?xml version="1....
 * /rosdistro: kinetic
 * /rosversion: 1.12.7
 * /use_sim_time: True

NODES
  /
    gazebo (gazebo_ros/gzserver)
    gazebo_gui (gazebo_ros/gzclient)
    spawn_urdf (gazebo_ros/spawn_model)

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
process[gazebo-1]: started with pid [30242]
process[gazebo_gui-2]: started with pid [30247]
process[spawn_urdf-3]: started with pid [30252]
Traceback (most recent call last):
  File "/opt/ros/kinetic/lib/gazebo_ros/spawn_model", line 32, in <module>
    import tf.transformations as tft
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf/__init__.py", line 28, in <module>
    from _tf import *
ImportError: /home/andreas/anaconda2/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /opt/ros/kinetic/lib/python2.7/dist-packages/tf/_tf.so)
[ INFO] [1499808994.861676790]: Finished loading Gazebo ROS API Plugin.
[ INFO] [1499808994.862201127]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
[spawn_urdf-3] process has died [pid 30252, exit code 1, cmd /opt/ros/kinetic/lib/gazebo_ros/spawn_model -urdf -model turtlebot3_burger -x 0.0 -y 0.0 -z 0.0 -param robot_description __name:=spawn_urdf __log:=/home/andreas/.ros/log/10d4ccd2-6677-11e7-bff4-a402b924af68/spawn_urdf-3.log].
log file: /home/andreas/.ros/log/10d4ccd2-6677-11e7-bff4-a402b924af68/spawn_urdf-3*.log
[ INFO] [1499808995.548652766, 0.023000000]: waitForService: Service [/gazebo/set_physics_properties] is now available.
[ INFO] [1499808995.631034578, 0.102000000]: Physics dynamic reconfigure ready.