React Native - “元素类型无效：需要字符串或类/函数但未定义” - 导入自定义库？

Question

Alright, I need to hack/tweak this library, so Im trying to import the not transpiled version by downloading the repo and importing: https://github.com/nicotroia/react-native-floating-action-menu#readme

All the paths are correct and the structure of the folder is:

When I do import { FloatingMenu } from './FloatingMenu/components/FloatingMenu'; I get the error:

Element type is invalid: expected a string or a class/function but got undefined

Says to "Check the render method of App." What is wrong here?

Answer 1

Assuming the non-transpiled code you're using is this file , the issue is that it's got a default export, but you're using a named import, not a default import. The fix is to change this:

import { FloatingMenu } from './FloatingMenu/components/FloatingMenu';

To this:

import FloatingMenu from './FloatingMenu/components/FloatingMenu';