Xcode发行版中的Bundlejs错误（react-native）

Question

For some reason I am getting the following error when building a release version of my application via react-native.

*** Terminating app due to uncaught exception 'RCTFatalException: Unhandled JS Exception: t.typeof is not a function. (In 't.typeof("function"==typeof Symbol?Symbol.iterator:"@@iterator")', 't.typeof' is undefined) (/Users/../THEAPP.app/main.jsbundle:11)', reason: 'Unhandled JS Exception: t.typeof is not a function. (In 't.typeof("function...'

This is the source of the code that has the above error that I found in my bundlejs file:

!(function(e){"use strict";var r,t=e.babelHelpers={};t.typeof="function"==typeof Symbol&&"symbol"===t.typeof("function"==typeof Symbol?Symbol.iterator:"@@iterator")?

I have tried both of these methods of a release build:

1. Making bundle by editing the Scheme to be a Release bundle
2. Export a bundle myself by using the following: react-native bundle --entry-file index.js --platform ios --dev false --bundle-output ios/main.jsbundle --assets-dest ios

I get the same error for both of these. And of course, this is after I change my AppDelegate.m to the following:

//jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
jsCodeLocation = [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];

---

I also followed someone's response from Github issues and tried the following, but got another separate issue entirely after the fact:

I did:

npm uninstall -g babel-preset-env
npm install --save @babel/preset-env

Added this to my package.json file

 "babel": { "presets": ["@babel/preset-env", "react-native"] }

And created a .babelrc file in my root project with:

{ "presets": ["@babel/preset-env", "react-native"] }

Then get this on an Xcode build:

Environment

• OS : macOS High Sierra 10.13.4
• Node : 9.11.1
• npm : 5.6.0
• Watchman : 4.9.1
• Xcode : Version 9.4 (9F1027a)
• react : 16.3.1
• react-native : 0.55.4

Answer 1

我通过完全重启我的应用程序并使用以下方法解决了这个问题：

react-native init PROJECTNAME