Issue running for 'Release' after upgrading to RN v0.50

[jonching]

Environment

Environment:
OS: macOS Sierra 10.12.6
Node: 6.9.1
Yarn: Not Found
npm: 3.10.8
Watchman: 4.7.0
Xcode: Xcode 9.1 Build version 9B55
Android Studio: Not Found

Packages: (wanted => installed)
react: ^16.0.0 => 16.0.0
react-native: ^0.50.0 => 0.50.0

Steps to Reproduce

1. Open xcode
2. Product -> Edit scheme -> Build configuration "Release"
3. Build and run for device or simulator

Expected Behavior

App successfully runs.

Actual Behavior

Stalls at launch screen and produces the following Xcode error:

E1104 15:25:43.994065 1870475264 JSCHelpers.cpp:137] Got JS Exception: Can't find variable: self (/var/containers/Bundle/Application/30C12CDD-E4C1-46CB-8972-FB0FF5650DDF/hydrangea.app/main.jsbundle:389)
E1104 15:25:43.994191 1870475264 JSCHelpers.cpp:143] Got JS Stack: /var/containers/Bundle/Application/30C12CDD-E4C1-46CB-8972-FB0FF5650DDF/hydrangea.app/main.jsbundle:389:12193

Reverting my react native version back to 0.49.3 makes it work again. I tried removing ios/build directory, doing xcode cleans, npm installing and always end up with this same error when building for release.

I ran a script to show what the error exactly was inside main.bundlejs. It's attached in the following image.

[huhuanming]

[huhuanming]

{try{return global || window}catch(a){return self }}

it can work well!

[huhuanming]

"react-native-fetch-blob": "huhuanming/react-native-fetch-blob",

you can solved this problem temporarily by this way.

@jonching

[bnjm]

@huhuanming I tried your fork but now instead of self the error that gets thrown is can't find variable: window

[huhuanming]

you should both fix oboe-browser.js and oboe-browser.min.js

[aforty]

Thanks @huhuanming.

I feel lucky to just have found my way here, most people probably won't even be able to debug this error to this point.

Can we push the fix asap?

[huhuanming]

https://github.com/wkh237/react-native-fetch-blob/pull/589/files

look this.

[aforty]

Seems that react-native 0.50.3 fixes the bundler issue.

[asgvard]

Can confirm it's fixed in 0.50.3

[huhuanming]

Sure.

I check it on Release.