Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Uncaught NetworkError: Failed to execute 'importScripts' on 'WorkerGlobalScope' when using main.jsbundle on iOS simulator

See original GitHub issue

Hi, I’d like to bundle my app using the command

react-native bundle --platform ios --dev false --entry-file index.ios.js --bundle-output iOS/main.jsbundle

from my project’s root directory. Bundling itself works just fine and the main.jsbundle file is created/updated. I’ve uncommented the line in AppDelegate.m that sets jsCodeLocation to my main bundle’s URL. As soon as I run my app in the simulator, chrome spits out the error

Uncaught NetworkError: Failed to execute 'importScripts' on 'WorkerGlobalScope': The script at 'file:///Users/steff/Library/Developer/CoreSimulator/Devices/9B63E242-5394-4781-9041-4408455B36B3/data/Containers/Bundle/Application/327E4FD3-77F7-4834-8CE7-44D68CE37B24/iazzu.app/main.jsbundle' failed to load.

When checking in Finder, the file exists and seems to have the same content than the .jsbundle file created by the bundle script.

Any ideas how I could solve this?

Issue Analytics

State:
Created 8 years ago
Comments:18 (3 by maintainers)

Top GitHub Comments

85reactions

hirmescommented, Jul 18, 2016

I came across this error message when trying to run via the Android emulator. Turning off the debugger and reloading the app revealed there was a syntax error in my JSX. Once that was fixed, the error went away and the app ran properly with the debugger.

47reactions

franticcommented, Mar 5, 2016

Looks like you are trying to debug offline bundle in Chrome, which doesn’t work because of browser’s offline content policy. Press Cmd+D, “Disable Chrome Debugging”