'value' is unavailable: introduced in iOS 12.0

[orzhtml]

Description

'value' is unavailable: introduced in iOS 12.0

Version

0.69.0

Output of npx react-native info

System:
OS: macOS 10.15.7
CPU: (4) x64 Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz
Memory: 27.26 MB / 8.00 GB
Shell: 5.7.1 - /bin/zsh
Binaries:
Node: 14.17.0 - ~/.nvm/versions/node/v14.17.0/bin/node
Yarn: 1.22.10 - ~/.nvm/versions/node/v14.17.0/bin/yarn
npm: 8.4.1 - ~/.nvm/versions/node/v14.17.0/bin/npm
Watchman: 4.7.0 - /usr/local/bin/watchman
Managers:
CocoaPods: 1.10.1 - /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms: iOS 14.4, DriverKit 20.2, macOS 11.1, tvOS 14.3, watchOS 7.2
Android SDK:
API Levels: 23, 25, 26, 27, 28, 29, 30
Build Tools: 26.0.2, 26.0.3, 28.0.3, 29.0.2, 29.0.3, 30.0.3
System Images: android-25 | Google APIs ARM EABI v7a, android-29 | Google Play Intel x86 Atom
Android NDK: Not Found
IDEs:
Android Studio: 4.2 AI-202.7660.26.42.7351085
Xcode: 12.4/12D4e - /usr/bin/xcodebuild
Languages:
Java: 1.8.0_152 - /usr/bin/javac
npmPackages:
@react-native-community/cli: Not Found
react: 18.0.0 => 18.0.0
react-native: 0.69.0 => 0.69.0
react-native-macos: Not Found
npmGlobalPackages:
react-native: Not Found

Steps to reproduce

npx react-native init example --template react-native-template-typescript

yarn start

open xcode run

Snack, code example, screenshot, or link to a repository

[friederbluemle]

Same issue here. I'm also using Xcode 12.4 - Could that be the reason?

[AmirDiafi]

+1

[orzhtml]

My system：
macOS Catalina （10.15.7）
MacBook Pro (13-inch, Mid 2012)

Xcode Version：12.4 (12D4e)

The latest system cannot be upgraded，Could that be the reason?

[datqb]

same issue, please give me solution when u have. tks

[zhaoaixu520]

Same with me
macOS Catalina （10.15.7）
Xcode Version：12.4 (12D4e)

[kangfenmao]

Same issue,

macOS Catalina （10.15.7）
Xcode Version：12.4 (12D4e)

[3runoDesign]

+1

[deep-innow8]

• change the pod files line number 31-37 as
  (comment this line) use_flipper!()

  post_install do |installer|
  react_native_post_install(installer)
  __apply_Xcode_12_5_M1_post_install_workaround(installer)
  sed -i -e $'s/__IPHONE_10_0/__IPHONE_12_0/' Pods/RCT-Folly/folly/portability/Time.h
  end

• search IPHONEOS_DEPLOYMENT_TARGET in the whole project and change to 12.4 for every pod as well

hope that works.....

[llVeraVerall]

I have the same problem. I think the error is that the app runs iOS 14.4

[ammarahm-ed]

Here's how I fixed it:

1. Open node_modules/react-native/scripts/react_native_pods.rb
2. Go to line no 401 >>> 'ios' => '11.0',
3. Change 11.0 to 12.0
4. Use patch-package to make a patch.
5. Run yarn
6. Run pod install
7. Go to ios/build/generated/ios/React-Codegen.podspec.json and confirm "platforms": { "ios": "12.0" }

That's all.

diff --git a/node_modules/react-native/scripts/react_native_pods.rb b/node_modules/react-native/scripts/react_native_pods.rb
index 7f6ebab..cea0fef 100644
--- a/node_modules/react-native/scripts/react_native_pods.rb
+++ b/node_modules/react-native/scripts/react_native_pods.rb
@@ -398,7 +398,7 @@ def get_react_codegen_spec(options={})
     'source' => { :git => '' },
     'header_mappings_dir' => './',
     'platforms' => {
-      'ios' => '11.0',
+      'ios' => '12.0',
     },
     'source_files' => "**/*.{h,mm,cpp}",
     'pod_target_xcconfig' => { "HEADER_SEARCH_PATHS" =>

[craspadotcom]

this worked, on a brand new project. Ive yet to add packages to see if those run fine. but can you please explain your line of thinking/workflow that made you come to this solution?

edit: after installing packages, project kept on reverting to 11.0. still unable to find a solution

[craspadotcom]

4. Use patch-package to make a patch.

npx patch-package react-native

[charlieswing]

+1

I'm getting this on a brand RN new project following the Getting Started instructions. Seems pretty ridiculous we'd have to modify one of the node_module files.