ImportError: dynamic module does not define module export function (PyInit__tf2)

[machenxiang]

Hi ,i am sorry to bother you. i use your airsim_ros_client pubImages.launch. And then it occurs this error

**So... logging to /home/mcx/.ros/log/4fbdd0f6-9bea-11e9-8ce3-b881980ddda6/roslaunch-mcx-Lenovo-Rescuer-15ISK-7289.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.

started roslaunch server http://mcx-Lenovo-Rescuer-15ISK:34899/

SUMMARY

PARAMETERS

• /airsim_img_publisher/Fx: 320
• /airsim_img_publisher/Fy: 320
• /airsim_img_publisher/cx: 320
• /airsim_img_publisher/cy: 180
• /airsim_img_publisher/height: 360
• /airsim_img_publisher/loop_rate: 10
• /airsim_img_publisher/width: 640
• /robot_description: <?xml version="1....
• /rosdistro: kinetic
• /rosversion: 1.12.14
• /use_gui: False

NODES
/
airsim_img_publisher (airsim_ros_client/img_publisher.py)
robot_state_publisher (robot_state_publisher/state_publisher)

auto-starting new master
process[master]: started with pid [7302]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 4fbdd0f6-9bea-11e9-8ce3-b881980ddda6
process[rosout-1]: started with pid [7315]
started core service [/rosout]
process[robot_state_publisher-2]: started with pid [7329]
process[airsim_img_publisher-3]: started with pid [7333]
Traceback (most recent call last):
File "/home/mcx/catkin_ws/src/airsim_ros_client/scripts/img_publisher.py", line 13, in
import tf2_ros
File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf2_ros/init.py", line 38, in
from tf2_py import *
File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf2_py/init.py", line 38, in
from ._tf2 import *
ImportError: dynamic module does not define module export function (PyInit__tf2)
[airsim_img_publisher-3] process has died [pid 7333, exit code 1, cmd /home/mcx/catkin_ws/src/airsim_ros_client/scripts/img_publisher.py __name:=airsim_img_publisher __log:=/home/mcx/.ros/log/4fbdd0f6-9bea-11e9-8ce3-b881980ddda6/airsim_img_publisher-3.log].
log file: /home/mcx/.ros/log/4fbdd0f6-9bea-11e9-8ce3-b881980ddda6/airsim_img_publisher-3*.log**

i have some questions want to ask for you.
1 I think this error iis wrong with the version of python .So which version of python do you use?
Thank you in advance.

[Mayankm96]

Hey!

As you said, the error seems to be connected to your Python. ROS Kinetic only works with Python 2.7. Can you try running following command and sharing outputs?

python -c "import tf"

and

python2.7 -c "import tf"

It will show if you can correctly import tf library.