veracrypt, truecrypt - mount without sudo password

I have already searched the forum for a solution but it does not work. I have tried veracrypt & truecrypt with both methods as shown in the arch wiki:
https://wiki.archlinux.org/index.php/TrueCrypt#Mount_volumes_as_a_normal_user

it seems the user in truecrypt or veracrypt group & visudo parameters are ignored ... any idea?

What's the output of groups? The {true,vera}crypt group should show up there.

I guess that part was missing after setting group or sudo permissions

sudo pacman -S pambase

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