Cbq for couchbase 5.0 version not working

I have downloaded new Cbq for 5.0 version but it is not loading buckets. I am able to connect query workbench through server tab.

Do u mean cbq shell. Did you used -e , u, -p options.
./cbq -e http://localhost:8091 -u Administrator -p passwrd

Post the exact command you issued and error message