Bundlejs error on release build in Xcode (react-native)


Bundlejs error on release build in Xcode (react-native)



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:


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:


.babelrc


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



Then get this on an Xcode build:



enter image description here



Environment




1 Answer
1



I solved this by completely restarting my app and using:


react-native init PROJECTNAME






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