React Native-无法在iOS中加载捆绑包

下面的链接提供了几种解决方案。请试一试。

https://github.com/facebook/react-native/issues/21310

for now after react-native init, since a lot of new changes are coming out, this fix worked for me (I got it from reading other issues):
with npm:
npm install --save-dev @babel/core
npm install --save-dev @babel/runtime
or with yarn:
yarn add --dev @babel/core
yarn add --dev @babel/runtime

if on ios you get _this._registerEvents is not a function, after a successful build
do
npm run start --reset-cache
or
react-native start --reset-cache

对于我来说,我得到了一些问题的原因,因为现在出现了很多新的变化,比如Xcode 10本身是新的,react native还没有与之合并,所以这个修复对我很有效:

使用npm:

npm安装--保存@babel/runtime

纱线添加@babel/runtime