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You need to uninstall the Kvaser drivers in order to use the SocketCAN. SocketCAN gets blacklisted by installing the LinuxCAN.

You may want to take a look at https://answers.ros.org/question/308591/is-it-possible-to-use-kvaser-can-to-usb-to-read-canopen-device/

where I have already explained that.

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