# NousResearch/hermes-agent · PM interpreter ABI mismatch check bug and fix

## Open now

- 1 issue, 0 PRs open on GitHub.
- #122555: \[Bug\]: pm activates a dependency environment built for another interpreter - no ABI check, and it drops the running interpreter's own site-packages

A bug where the package manager activates a dependency environment built for a different interpreter without ABI validation, dropping the current interpreter's site-packages. Two fix attempts address this by refusing activation when the interpreter does not match.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 0 open PR(s), 0 merged PR(s), 2 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #122555: \[Bug\]: pm activates a dependency environment built for another interpreter - no ABI check, and it drops the running interpreter's own site-packages

## Prior & competing PRs

- **#123393: fix(pm): refuse activating a dependency tree built for another interpreter (fixes #122555)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `e4c728d2e7ac443184bc90ec5fb6c856fcb6a46b`
- **#132689: fix(pm): refuse to activate dependency env built for another interpreter (fixes #122555)**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`

## Fix status

- No merged fix on record.
- Subsystem: `environments`