Plugin upload on linux fails with "Error opening device - Error code : Input/output error"

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One of the most common perks on linux with that type of issues is that your user does not have read-write access to the /dev/tty devices
On Ubuntu, your user must be added to the "tty" group, this can be done by running :

sudo usermod -a -G dialout my_user

then don't forget to log out and back in !

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