Cannot launch exercise 3.2

I’m stuck i exercise 3.2, I get following message when launching the packages:

process[my_topic_subscriber-1]: started with pid [23997]
Traceback (most recent call last):
File “/home/user/catkin_ws/src/my_subscribe/src/”, line 4, in
from std_msgs.msg import Odometry
ImportError: cannot import name Odometry
[my_topic_subscriber-1] process has died [pid 23997, exit code 1, cmd /home/user/catkin_ws/src/my_subscribe/src/ __name:=my_topic_subscriber __log:=/home/user/.ros/log/b8923bb6-ddf3-11ea-9bc9-02ea1cfcf7ef/my_topic_subscriber-1.log].
log file: /home/user/.ros/log/b8923bb6-ddf3-11ea-9bc9-02ea1cfcf7ef/my_topic_subscriber-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor…
… shutting down processing monitor complete

The packages look exactly like the solutions, yet I still get still issue. Can you help?

Hi @s151766, Odometry is part of nav_msgs, not std_msgs