"no license is defined ..." or "no licenses are defined ..."

Should I say "no license is defined for ..." or "no licenses are defined for ..."? If both are correct, which are preferable?

A quick internet search shows the former is used more frequently. Yet, perhaps, the latter better reflect the fact that a thing (e.g. a software package) can be covered by multiple licenses. For example, the same computer software is often distributed both under commercial and open-source licenses, where a commercial license might offers better support and accountability for damages.

Solution 1:

I would use the singular "is" and "license" when I wish to say that one license, which is the expected or customary number, is not defined. I would use the plural "are" and "licenses" when I wish to say that no licenses at all (when one or more might have existed) are defined.