./train-local: line 34: jq: command not found

[Asomey]

i want to train locally on my cpu. after l ran the script,l got this error:
"""
./train-local: line 34: jq: command not found
"docker run" requires at least 1 argument.
See 'docker run --help'.
Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
Run a command in a new container
"""
that means jq is not found.
l try to run "sudo apt-get install jq" in wsl(ubuntu18.04), but it will show this error:
"""
Reading package lists... Done
Building dependency tree
Reading state information... Done
W: Not using locking for read only lock file /var/lib/dpkg/lock-frontend
W: Not using locking for read only lock file /var/lib/dpkg/lock
E: Unable to locate package jq
"""
has someone meet the same problems in installing jq?
Thanks in advance!

[Asomey]

ok l already handle this question.
the reason is the apt's version is low.
so you can run "apt-get install update" to deal with the question