#12552 Set default invalid lockfile behaviour to `error` Issue created by chrisjrn After setting the default behaviour to

error

during development work for #12448, our CI stopped passing. I've since changed the behaviour back to

warn

in order to land the PR. To address, we should clear out all invalid lockfile warnings from our CI runs, and once we've achieved that, change the default behaviour to

error

. This can be addressed after #12542 is complete. pantsbuild/pants