Unable to load junos on vqfx-pfe

Good morning,

I am running the the virtual appliance of the QFX10000 Switch, the name of the image is cosim-18.4R1.8_20180212.qcow2.

I am able to login into the Unix shell by using username = root, password = no, but I am unable to start the junos CLI.

I read that for starting junos CLI from the Unix shell typing cli is enough, but it does not work with this image.

I am attaching a screenshot of the message.

Thanks in advance.

GM