Formik: Yup "with" does not work with Formik
Describe the bug
When I setup validation scheme with the operator "when" I received an error.
formik.es6.js:6198 Uncaught (in promise) TypeError: Cannot read property 'length' of undefined
at yupToFormErrors (formik.es6.js:6198)
at formik.es6.js:5933
To Reproduce
You can open codesandbox link and try to edit any fields. It will receive an error.
- Formik Version: ^0.11.11
- React Version: 16.0.0
- CodeSandbox Link: https://codesandbox.io/s/xp72p4q344
hellpirat
>All comments
The reason it fails here is because the "when" is looking for an "isBig" sibling, which does not exist in your schema. If you simply add, "isBig: Yup.boolean()," to the schema above the "count" definition, everything seems to work.
royerboat
on 28 Aug 2018
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Most helpful comment
The reason it fails here is because the "when" is looking for an "isBig" sibling, which does not exist in your schema. If you simply add, "isBig: Yup.boolean()," to the schema above the "count" definition, everything seems to work.