oz link of non-Ethereum package errors with Cannot read property 'trim' of undefined

[abcoathup]

oz link of non-Ethereum package errors with Cannot read property 'trim' of undefined

A community member attempted to link OpenZeppelin Upgrades which is not an Ethereum package and received the error:

$ npx oz link @openzeppelin/upgrades
✓ Dependency @openzeppelin/upgrades installed
Cannot read property 'trim' of undefined

The error occurs for any non-Ethereum package:

$ npx oz link cowsay
✓ Dependency cowsay installed
Cannot read property 'trim' of undefined

For non-Ethereum packages we could show a warning that the package was installed but there was nothing to link.

Forum topic:
https://forum.openzeppelin.com/t/npx-oz-link-openzeppelin-upgrades-error-cannot-read-property-trim-of-undefined/2263