我收到错误：TypeError: Cannot read property 'length' of undefined
例如，我有这个验证：
const agreementDurationAmount = Yup.number().when('agreementDuration', (agreementDuration) => {
if(agreementDuration === 'Miesięczny') {
return Yup.number().min(1, 'Czas trwania umowy: wprowadź liczbę miesięcy');
}
if(agreementDuration === 'Tygodniowy') {
return Yup.number().min(1, 'Czas trwania umowy: wprowadź liczbę tygodni');
}
return Yup.number();
});
这样的对象：
{
agreementDuration: 'Nieokreślony',
agreementDurationAmount: 0,
}
更大的错误消息：
formik.es6.js:377 Uncaught (in promise) TypeError: Cannot read property 'length' of undefined
at yupToFormErrors (formik.es6.js:377)
at formik.es6.js:167
at <anonymous>
| yupToFormErrors | @ | formik.es6.js:377
-- | -- | -- | --
| (anonymous) | @ | formik.es6.js:167
| Promise rejected (async) | |
| Formik._this.runValidationSchema | @ | formik.es6.js:161
| Formik._this.submitForm | @ | formik.es6.js:262
| Formik._this.handleSubmit | @ | formik.es6.js:234
| ReactErrorUtils.invokeGuardedCallback | @ | ReactErrorUtils.js:69
| executeDispatch | @ | EventPluginUtils.js:85
| executeDispatchesInOrder | @ | EventPluginUtils.js:108
| executeDispatchesAndRelease | @ | EventPluginHub.js:43
| executeDispatchesAndReleaseTopLevel | @ | EventPluginHub.js:54
| forEachAccumulated | @ | forEachAccumulated.js:24
| processEventQueue | @ | EventPluginHub.js:254
| runEventQueueInBatch | @ | ReactEventEmitterMixin.js:17
| handleTopLevel | @ | ReactEventEmitterMixin.js:27
| handleTopLevelImpl | @ | ReactEventListener.js:72
| batchedUpdates | @ | ReactDefaultBatchingStrategy.js:60
| batchedUpdates | @ | ReactUpdates.js:97
| dispatchEvent | @ | ReactEventListener.js:147
| componentDidUpdate | @ | App.jsx:17
| measureLifeCyclePerf | @ | ReactCompositeComponent.js:75
| (anonymous) | @ | ReactCompositeComponent.js:728
| notifyAll | @ | CallbackQueue.js:76
| close | @ | ReactReconcileTransaction.js:80
| closeAll | @ | Transaction.js:209
| perform | @ | Transaction.js:156
| perform | @ | Transaction.js:143
| perform | @ | ReactUpdates.js:89
| flushBatchedUpdates | @ | ReactUpdates.js:172
| closeAll | @ | Transaction.js:209
| perform | @ | Transaction.js:156
| batchedUpdates | @ | ReactDefaultBatchingStrategy.js:62
| enqueueUpdate | @ | ReactUpdates.js:200
| enqueueUpdate | @ | ReactUpdateQueue.js:24
| enqueueSetState | @ | ReactUpdateQueue.js:218
| ReactComponent.setState | @ | ReactBaseClasses.js:64
| onStateChange | @ | connectAdvanced.js:205
| dispatch | @ | createStore.js:173
| dispatch | @ | VM33975:2
| (anonymous) | @ | index.js:14
| dispatch | @ | applyMiddleware.js:35
| saveData.then.data | @ | index.js:129
| Promise resolved (async) | |
| (anonymous) | @ | index.js:102
| (anonymous) | @ | index.js:11
| dispatch | @ | VM33975:2
| initStore.then.initialState | @ | getStore.js:109
| Promise resolved (async) | |
| getStore | @ | getStore.js:99
| __webpack_exports__.a | @ | index.jsx:13
| map../af | @ | main.js:39
| __webpack_require__ | @ | bootstrap 4fef064…:19
| Object.defineProperty.value | @ | bundle.js?1504015496728=123:55068
| __webpack_require__ | @ | bootstrap 4fef064…:19
| (anonymous) | @ | bootstrap 4fef064…:62
| (anonymous) | @ | bootstrap 4fef064…:62