[React Native] Hermes on iOS (react-native 0.64)

[mrousavy]

New Issue Checklist

• Updated fastlane to the latest version
• I read the Contribution Guidelines
• I read docs.fastlane.tools
• I searched for existing GitHub issues

Issue Description

React Native 0.64-rc0 was released, which includes opt-in support for the Hermes JS executor (instead of JSC). (see react-native-community/releases#214)

I've upgraded my project to use RN 0.64 rc and enabled hermes which works as expected in debug builds. Unfortunately I couldn't run fastlane beta anymore, since it seems that this requires additional changes from the fastlane CLI.

Command executed

fastlane beta

Complete output when running fastlane, including the stack trace and command used

It looks like only the bundle command fails, since fastlane doesn't expect hermes bitcode instead of the js bundle.

 
▸ Processing Info.plist
▸ Running script 'Bundle React Native code and images'
    the transform cache was reset.
❌  /Users/mrousavy/Library/Developer/Xcode/DerivedData/Springsale-cdueuzbwshyvojabkcrtvdjvltvy/Build/Intermediates.noindex/ArchiveIntermediates/Springsale/BuildProductsPath/Release-iphoneos/main.jsbundle:1:1: Invalid UTF-8 continuation byte
��

�'

^
❌  error: File /Users/mrousavy/Library/Developer/Xcode/DerivedData/Springsale-cdueuzbwshyvojabkcrtvdjvltvy/Build/Intermediates.noindex/ArchiveIntermediates/Springsale/BuildProductsPath/Release-iphoneos/Springsale.app/main.jsbundle does not exist. This must be a bug with
 

Environment

 
| Key                         | Value                                                          |
| --------------------------- | -------------------------------------------------------------- |
| OS                          | 11.0.1                                                         |
| Ruby                        | 2.6.3                                                          |
| Bundler?                    | false                                                          |
| Git                         | git version 2.24.3 (Apple Git-128)                             |
| Installation Source         | /usr/local/bin/fastlane                                        |
| Host                        | macOS 11.0.1 (20B29)                                           |
| Ruby Lib Dir                | /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib |
| OpenSSL Version             | LibreSSL 2.8.3                                                 |
| Is contained                | false                                                          |
| Is homebrew                 | false                                                          |
| Is installed via Fabric.app | false                                                          |
| Xcode Path                  | /Applications/Xcode.app/Contents/Developer/                    |
| Xcode Version               | 12.2                                                           |
System Locale



Error




No Locale with UTF8 found 🚫



fastlane gems



Gem
Version
Update-Status




fastlane
2.166.0
🚫 Update available



Loaded fastlane plugins:
No plugins Loaded
Loaded gems



Gem
Version




did_you_mean
1.3.0


slack-notifier
2.3.2


rouge
2.0.7


xcpretty
0.3.0


terminal-notifier
2.0.0


unicode-display_width
1.7.0


terminal-table
1.8.0


plist
3.5.0


addressable
2.7.0


multipart-post
2.0.0


word_wrap
1.0.0


tty-screen
0.8.1


tty-cursor
0.7.1


tty-spinner
0.9.3


babosa
1.0.4


colored
1.2


highline
1.7.10


commander-fastlane
4.4.6


unf_ext
0.0.7.7


unf
0.1.4


domain_name
0.5.20190701


http-cookie
1.0.3


faraday-cookie_jar
0.0.7


faraday_middleware
1.0.0


fastimage
2.2.0


gh_inspector
1.1.3


mini_magick
4.10.1


rubyzip
2.3.0


security
0.1.3


xcpretty-travis-formatter
1.0.0


dotenv
2.7.6


bundler
2.1.4


naturally
2.2.0


simctl
1.6.8


jwt
2.2.2


uber
0.1.0


declarative
0.0.20


declarative-option
0.1.0


representable
3.0.4


retriable
3.1.2


mini_mime
1.0.2


multi_json
1.15.0


signet
0.14.0


memoist
0.16.2


os
1.1.1


googleauth
0.14.0


httpclient
2.8.3


google-api-client
0.38.0


google-cloud-errors
1.0.1


google-cloud-core
1.5.0


rake
13.0.1


digest-crc
0.6.1


google-cloud-storage
1.29.1


nanaimo
0.3.0


colored2
3.1.2


claide
1.0.3


CFPropertyList
3.0.2


atomos
0.1.3


xcodeproj
1.19.0


public_suffix
4.0.6


excon
0.78.0


ruby2_keywords
0.0.2


faraday
1.1.0


json
2.3.1


google-cloud-env
1.4.0


emoji_regex
3.2.1


aws-eventstream
1.1.0


aws-sigv4
1.2.2


aws-partitions
1.388.0


jmespath
1.4.0


aws-sdk-core
3.109.1


aws-sdk-kms
1.39.0


aws-sdk-s3
1.83.1


forwardable
1.2.0


logger
1.3.0


stringio
0.0.2


ipaddr
1.2.2


openssl
2.1.2


ostruct
0.1.0


strscan
1.0.0


date
2.0.0


fileutils
1.1.0


etc
1.0.1


io-console
0.4.7


zlib
1.0.0


libxml-ruby
3.1.0


rexml
3.2.4


psych
3.1.0


mutex_m
0.1.0


webrick
1.4.2



generated on: 2020-11-23

[mrousavy]

Nevermind, that has nothing to do with fastlane.

I still had the ram-bundle enabled in my bundle build phase, you obviously have to remove that when using Hermes. 🤦