react中運行報錯。Check the render method of `CountLineData`.

本文轉載自查看原文 2019-09-23 18:55 2571 react

Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in. Check the render method of `CountLineData`.

本錯誤的原因：在頁面上引用多加了{}，唉，害死人呀

所以說，這種錯誤解決的辦法只有細心，沒別的

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