
In past post, rosnode and rostopic list doesn't show the "/imu/data_raw"
So, I tried again to resolve this.
### STEP 1. Corrected mpu6050_publisher.py Script
I was just being silly....
For get this result, you should run the below code with opened two terminal.

First terminal
roslaunch mpu6050_driver mpu6050.launch
Second terminal
roscore
last main terminal
rosnode list
rostopic list

you can see the node connection.