React: Предупреждение: «Встречены двое детей с одним и тем же ключом»

Полный стек вызовов одного из таких, как показано ниже:

warning.js: 45 Предупреждение: flattenChildren (...): обнаружены два дочерних элемента с одним и тем же ключом, .$outbox81 . Дочерние ключи должны быть уникальными; когда двое детей имеют общий ключ, будет использоваться только первый ребенок. : 44_reconcilerUpdateChildren @ ReactMultiChild.js: 212_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимно functi на) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent. JS: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPer f.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js : 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js : 562_performComponentUpdate @ ReactCompos iteComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js : 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимно func Тион) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js: 87obj (анонимная функция) @. backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js : 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild. eactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js : 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66performUpdateIfNecessary @ ReactCompositeComponent.js: 421performUpdateIfNecessary @ ReactReconciler.js: 102obj. (Анонимная функция) @ backend.js: 8386runBatchedUpdates @ ReactUpdates.js: 129perform @ Transaction.js: 136perform @ Transaction.js: 136perform @ ReactUpdates.js: 86flushBatchedUpdates @ ReactUpdates_ReactUpdates @ ReactUpdates @ ReactUpdates_ReactUpdates shBatchedUpdates @ ReactPerf.js: 66closeAll @ Transaction.js: 202perform @ Transaction.js: 149batchedUpdates @ ReactDefaultBatchingStrategy.js: 62enqueueUpdate @ ReactUpdates.js: 176enqueueUpdate @ ReactUpdateQueue.js: 24enqueueSetState @ ReactUpdateQueue.js: 190ReactComponent.setState @ ReactComponent.js: 65handleChange @ connect.js: 301dispatch @ createStore.js: 186 (анонимная функция) @ api.js: 91 (анонимная функция) @ index.js: 15 (анонимная функция) @ middleware.js: 22 (анонимная функция) @ bindActionCreators. js: 7hide @ index.js: 743handleDocumentClick @ index.js: 519
warning.js: 45 Предупреждение: flattenChildren (...): обнаружены два дочерних элемента с одним и тем же ключом, .$outbox80 . Дочерние ключи должны быть уникальными; когда двое детей имеют общий ключ, будет использоваться только первый ребенок. : 44_reconcilerUpdateChildren @ ReactMultiChild.js: 212_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимно functi на) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent. JS: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPer f.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js : 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js : 562_performComponentUpdate @ ReactCompos iteComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js : 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild.js: 326_updateDOMChildren @ ReactDOMComponent.js: 871updateComponent @ ReactDOMComponent.js: 700receiveComponent @ ReactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимно func Тион) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js: 87obj (анонимная функция) @. backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js: 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js : 8386updateChildren @ ReactChildReconciler.js: 84_reconcilerUpdateChildren @ ReactMultiChild.js: 216_updateChildren @ ReactMultiChild.js: 351updateChildren @ ReactMultiChild. eactDOMComponent.js: 645receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66receiveComponent @ ReactCompositeComponent.js : 405receiveComponent @ ReactReconciler.js:. 87obj (анонимная функция) @ backend.js: 8386_updateRenderedComponent @ ReactCompositeComponent.js: 562_performComponentUpdate @ ReactCompositeComponent.js: 544updateComponent @ ReactCompositeComponent.js: 473ReactCompositeComponent_updateComponent @ ReactPerf.js: 66performUpdateIfNecessary @ ReactCompositeComponent.js: 421performUpdateIfNecessary @ ReactReconciler.js: 102obj. (Анонимная функция) @ backend.js: 8386runBatchedUpdates @ ReactUpdates.js: 129perform @ Transaction.js: 136perform @ Transaction.js: 136perform @ ReactUpdates.js: 86flushBatchedUpdates @ ReactUpdates @ ReactUpdates @ ReactUpdates @ ReactUpdates_ReactUpdates shBatchedUpdates @ ReactPerf.js: 66closeAll @ Transaction.js: 202perform @ Transaction.js: 149batchedUpdates @ ReactDefaultBatchingStrategy.js: 62enqueueUpdate @ ReactUpdates.js: 176enqueueUpdate @ ReactUpdateQueue.js: 24enqueueSetState @ ReactUpdateQueue.js: 190ReactComponent.setState @ ReactComponent.js: 65handleChange @ connect.js: 301dispatch @ createStore.js: 186 (анонимная функция) @ api.js: 91 (анонимная функция) @ index.js: 15 (анонимная функция) @ middleware.js: 22 (анонимная функция) @ bindActionCreators. js: 7hide @ index.js: 743handleDocumentClick @ index.js: 519

Извини, это моя ошибка.

Можете ли вы рассказать мне, в чем была настоящая проблема? У меня такие же предупреждения, когда я вызываю плоский список метода onReachEnd