Add your user to the 'dialout' group
sudo usermod -aG dialout yourusername
(optional) Verify:
groups
'dialout' should be in the included in the list of groups.
sudo vi /etc/udev/rules.d/77-arduino.rules
File content:
ATTRS{idVendor}=="1b4f", ENV{ID_MM_DEVICE_IGNORE}="1"