Module not found: Can't resolve 'mobx-state-tree'

[Tri4Ty]

I have mobx 6.1.8 and my app does not live inside an iframe.
Here are my mobx-related depencencies:

"mobx": "^6.1.8",
"mobx-devtools-mst": "^0.9.30",
"mobx-react": "^6.1.8",

When i try to import devtools like so:

import makeInspectable from 'mobx-devtools-mst'
I get the following error:

Module not found: Can't resolve 'mobx-state-tree' in '.../node_modules/mobx-devtools-mst/lib'

[LandonSchropp]

Same issue here.

[kuasha420]

Do you have mobx-state-tree? Are you using mobx-state-tree? Otherwise you don't even need mobx-devtools-mst