"npm ERR! peer dep missing: ajv@^6.0.0, required by [email protected]"

[garyking]

After installing with npm -g i nba-go, I get the following whenever I run npm list --global --depth=0, at the bottom of the list (the message appears twice):

npm ERR! peer dep missing: ajv@^6.0.0, required by [email protected]
npm ERR! peer dep missing: ajv@^6.0.0, required by [email protected]

Can this module please resolve this? Even running npm -g i ajv doesn't resolve this for me.