error when upgrading mobx-state-tree to v6

[barbalex]

When I upgrade mobx-state-tree from 5.4.2 to 6.0.0 I get this error:

[mobx-state-tree] Failed to find the environment of UndoManager@/history /history

The error is caused here: https://github.com/barbalex/awel-personal-vite/blob/master/src/store/index.js#L816

The app worked without error before upgrading. And works again fine when downgrading mobx-state-tree to v5.4.2

[coolsoftwaretyler]

HI @barbalex - thanks for the bug report! This makes sense to me. Version 6 of MobX-State-Tree included a few breaking changes, including new behaviors for getEnv, which now throws an error to be more consistent with other parts of the API. That's my guess at the culprit, but I have not investigated fully.

We did not upgrade this middlewares package alongside MobX-State-Tree because it's no longer part of the core project. But this seems like a pretty straightforward fix (I think we'll just need to try/catch around whatever getEnv calls exist in the middlewares).

If you're interested in putting together a PR to fix it, I'd be happy to prioritize reviewing it. Otherwise, I will add this to my list, but the middlewares package is low on priorities, so I can't guarantee a quick turnaround on that one. Apologies for the inconvenience in the meantime!

[ramsaylanier]

Its been a while but I have a workaround for this, as I ran into the same problem:

export const storeWithHistory= StoreWithHistory.create({}, {
  history: { targetStore: {} },
});

// Now set the circular reference after the store is created
const storeEnv = getEnv(storeWithHistory) as {
  history: { targetStore};
};
storeEnv.history.targetStore = storeWithHistory;