STCubeProgrammerLauncher won't start in ubuntu 18.0.4LTS

[ThePUP]

Following these instructions:

https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157x-EV1/Let%27s_start/Populate_the_target_and_boot_the_image

Please see the attached screen shot, and advise.

thanks.

[ThePUP]

PROBLEM SOLVED: full reboot fixes the error, at least on ubuntu 18.0.4LTS & CubeProgrammer 2.4.0.