docker invalid reference format

Question

I'm following this Docker-based tutorial. When I tried to run Docker (using the run.sh script), I got the following error:

docker run \
    -p 8888:8888 
    -v `pwd`/../src:/src \
    -v `pwd`/../data:/data -w /src supervisely_anpr \
    --rm \
    -it \
    bash

I got the following error:

docker: invalid reference format.

I've spent two hours trying to figure out what's wrong. Any suggestions would be greatly appreciated.