Hi guys, I'm working on moving upgrading our pants system from 1.4 to 1.8, and am running into this error when running

./pants list --changed-since=de8c7da6784696068fda55587d7f6f88a66b50c9 --changed-include-dependees=transitive

Exception message: Received unexpected Throw state(s):
Computing Select(Specs(dependencies=(DescendantAddresses(directory=u''),), tags=(), exclude_patterns<=tuple>=()), =TransitiveHydratedTargets)
  Computing Task(transitive_hydrated_targets, Specs(dependencies=(DescendantAddresses(directory=u''),), tags=(), exclude_patterns<=tuple>=()), =TransitiveHydratedTargets)
    Computing Task(addresses_from_address_families, Specs(dependencies=(DescendantAddresses(directory=u''),), tags=(), exclude_patterns<=tuple>=()), =BuildFileAddresses)
      Computing Snapshot(PathGlobs(include=(u'**/BUILD.*', u'**/BUILD'), exclude=('.*/', '/dist/', 'bower_components/', 'node_modules/', '*.egg-info/', 'service_template', 'archives', 'examples/src/python', 'examples/tests/python'), glob_match_error_behavior<=GlobMatchErrorBehavior>=GlobMatchErrorBehavior(failure_behavior=ignore)))
        Computing ReadLink(Link("monolith/venv-monolith-build/.Python"))
          Throw(Failed to read_link for Link("monolith/venv-monolith-build/.Python"): Custom { kind: InvalidData, error: StringError("Absolute symlink: \"/Users/paul.yau/repos/webapp/monorepo/monolith/venv-monolith-build/.Python\"") })
            Traceback (no traceback):
              <pants native internals>
            Exception: Failed to read_link for Link("monolith/venv-monolith-build/.Python"): Custom { kind: InvalidData, error: StringError("Absolute symlink: \"/Users/paul.yau/repos/webapp/monorepo/monolith/venv-monolith-build/.Python\"") }