Use ReactNative to the ios native project，and the compilation was several times slower

[luangaolei]

Environment

Environment:
OS: macOS High Sierra 10.13.4
Node: 10.8.0
Yarn: 1.9.4
npm: 6.2.0
Watchman: 4.9.0
Xcode: Xcode 9.4.1 Build version 9F2000
Android Studio: Not Found

Packages: (wanted => installed)
react: 16.3.1 => 16.3.1
react-native: ^0.55.4 => 0.55.4

Description

Excuse me, why did I add ReactNative to the native ios project? Every time when I first compiled the project, it was very slow. It was much slower than the native project.How should this problem be solved?

[saber623]

I also have this problem.

[react-native-bot]

It looks like you are using an older version of React Native. Please update to the latest release, v0.56 and verify if the issue still exists.

The ":rewind:Old Version" label will be removed automatically once you edit your original post with the results of running react-native info on a project using the latest release.

[luangaolei]

Hi ，@react-native-bot， I found that the version 0.56 doesn't support ios8, so I chose the version 0.55.4 .
Is there any way to solve this particularly slow compilation problem at 0.55.4?
Or any way to let 0.56 support ios8？

[luangaolei]

Adding this to your project will not speed up compilation @react-native-bot

[luangaolei]

Hi, @react-native-bot ,Can you help me solve this problem?

[luangaolei]

@react-native-bot I tried using the latest version ReactNative v0.56.0 just now, but it still took me a long time to build the project for the first time, so the latest version doesn't solve that problem.

React Native Environment Info:
System:
OS: macOS High Sierra 10.13.4
CPU: x64 Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
Memory: 240.03 MB / 8.00 GB
Shell: 5.3 - /bin/zsh
Binaries:
Node: 10.8.0 - /usr/local/bin/node
Yarn: 1.9.4 - /usr/local/bin/yarn
npm: 6.2.0 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 11.4, macOS 10.13, tvOS 11.4, watchOS 4.3
IDEs:
Xcode: 9.4.1/9F2000 - /usr/bin/xcodebuild
npmPackages:
react: 16.3.1 => 16.3.1
react-native: ^0.56.0 => 0.56.0

[luangaolei]

@react-native-bot, I find that comment out RCTWebSocket and RCTAnimation , and then pod install will not have that particularly slow compilation problem.

pod 'React', :path => '../node_modules/react-native', :subspecs => [
    'Core',
    'CxxBridge', # Include this for RN >= 0.47
    'DevSupport', # Include this to enable In-App Devmenu if RN >= 0.43
    'RCTText',
    'RCTLinkingIOS',
    'RCTPushNotification',
    'RCTImage',
    'RCTNetwork',
    #'RCTWebSocket', # Needed for debugging
    #'RCTAnimation', # Needed for FlatList and animations running on native UI thread
  ]

[stale]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? This issue may be closed if no further activity occurs. You may also label this issue as "For Discussion" or "Good first issue" and I will leave it open. Thank you for your contributions.

[stale]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please feel free to create a new issue with up-to-date information.