error

[leofengzhigu]

Initializing I2C...
[mpu6050_node-1] process has died [pid 20353, exit code -11, cmd /home/ubuntu/dmp/devel/lib/ros_mpu6050_node/mpu6050_node __name:=mpu6050_node __log:=/home/ubuntu/.ros/log/6f8da8e8-6628-11eb-a435-000c298d542f/mpu6050_node-1.log].
log file: /home/ubuntu/.ros/log/6f8da8e8-6628-11eb-a435-000c298d542f/mpu6050_node-1*.log

[zoldaten]

@leofengzhigu try with sudo:
sudo bash -c "source /home/ubuntu/kalibr_workspace/devel/setup.bash; roslaunch ros_mpu6050_node mpu6050.launch"