Eric013 · December 1, 2022 20:58 · May 15, 2021 · May 15, 2021 · May 15, 2021 · May 15, 2021
diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -28,6 +28,14 @@ post_install do |installer|
 end
 ```
 
+You'll need to re-install pods after making this change: 
+
+```bash
+cd ios
+rm -rf Pods Podfile.lock
+pod install
+```
+
 Some libraries/pods will STILL have arch issues installing. You might get errors like ` missing compatible arch in /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.0/lib/ffi_c.bundle`, in which you will have to use Rosetta:
 
 ```bash

diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -3,7 +3,7 @@ My env:
 - cocoapods 1.10.1
 - xcode 12.4
 - macos big sur 11.2.3
-- react 0.64
+- react-native 0.64
 
 ## iOS
 

diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -15,7 +15,7 @@ Ensure arm64 is excluded for the simulator build in the main project. Here's a r
 
 In Podfile, set `EXCLUDED_ARCHS[sdk=iphonesimulator*] = 'arm64'` for pods:
 
-```
+```ruby
 post_install do |installer|
   react_native_post_install(installer)
 
@@ -39,7 +39,7 @@ You won't be able to "Distribute" (create an .ipa from an archive build). You'll
 
 If you're using `xcodebuild` to generate an `.ipa`, you need to prepend `arch -x86_64` to the command:
 
-```
+```bash
 # Create the .ipa from the archive
 arch -x86_64 xcodebuild \
   -exportArchive \

diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -54,4 +54,4 @@ I couldn't get hermes to build. I think this will be fixed in react-native 0.65,
 
 # Android
 
-There is an [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has a few restrictions, like not having a working browser. 
+I have no problems building the project but the emulator does not support arm64. There is an [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has a few restrictions, like not having a working browser. To workaround this you can use a physical device attached via usb.
diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -54,4 +54,4 @@ I couldn't get hermes to build. I think this will be fixed in react-native 0.65,
 
 # Android
 
-For android, there is an [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has a few restrictions, like not having a working browser. 
+There is an [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has a few restrictions, like not having a working browser. 
diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -1,10 +1,11 @@
-I knew I'd be taking a risk getting the M1 Macbook so here's some tips/learnings.
-
 My env:
 
 - cocoapods 1.10.1
 - xcode 12.4
 - macos big sur 11.2.3
+- react 0.64
+
+## iOS
 
 The iOS simulator build won't "just work". If you get errors like `ld: library not found for...` or swift compiler errors, then you need to disable arm64 for the simulator build. 
 
@@ -47,4 +48,10 @@ arch -x86_64 xcodebuild \
   -exportOptionsPlist ExportOptions.plist
 ```
 
+## Hermes
+
+I couldn't get hermes to build. I think this will be fixed in react-native 0.65, see: https://github.com/facebook/hermes/pull/475 & https://github.com/react-native-community/releases/issues/223
+
+# Android
+
 For android, there is an [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has a few restrictions, like not having a working browser. 
diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -47,6 +47,4 @@ arch -x86_64 xcodebuild \
   -exportOptionsPlist ExportOptions.plist
 ```
 
-For android, I don't really have many good tips. The android emulators didn't work and i tried the [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has many restrictions that prevented me from using it. I see now it's been added to the SDK Manager so perhaps they've made further updates. I will try it again when I have some time. I've been using my Windows laptop for Android dev.
-
-Hopefully this is helpful to some. Please share any tips you might have!
+For android, there is an [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has a few restrictions, like not having a working browser. 
diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -6,7 +6,11 @@ My env:
 - xcode 12.4
 - macos big sur 11.2.3
 
-The iOS simulator build won't "just work". If you get errors like `ld: library not found for...` or swift compiler errors, then you need to disable arm64 for the simulator build. ReactNative 0.64 [added this change](https://github.com/react-native-community/rn-diff-purge/blob/45a22384013841340108a8f5a519b2d5d403452e/RnDiffApp/ios/RnDiffApp.xcodeproj/project.pbxproj#L564) for the debug and release builds but not for the pods, so we need to do the same for the pods:
+The iOS simulator build won't "just work". If you get errors like `ld: library not found for...` or swift compiler errors, then you need to disable arm64 for the simulator build. 
+
+Ensure arm64 is excluded for the simulator build in the main project. Here's a reference:
+
+<img src="https://user-images.githubusercontent.com/102141/117538263-49856e00-affd-11eb-84d1-7eb521ec705f.png" />
 
 In Podfile, set `EXCLUDED_ARCHS[sdk=iphonesimulator*] = 'arm64'` for pods:
 

diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -23,6 +23,13 @@ post_install do |installer|
 end
 ```
 
+Some libraries/pods will STILL have arch issues installing. You might get errors like ` missing compatible arch in /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.0/lib/ffi_c.bundle`, in which you will have to use Rosetta:
+
+```bash
+sudo arch -x86_64 gem install ffi
+arch -x86_64 pod install
+```
+
 You won't be able to "Distribute" (create an .ipa from an archive build). You'll get an error like "IPA processing failed". This seems to be a bug with xcode 12.4. You will need to open XCode with Rosetta to fix this. 
 
 If you're using `xcodebuild` to generate an `.ipa`, you need to prepend `arch -x86_64` to the command:

diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -39,5 +39,3 @@ arch -x86_64 xcodebuild \
 For android, I don't really have many good tips. The android emulators didn't work and i tried the [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has many restrictions that prevented me from using it. I see now it's been added to the SDK Manager so perhaps they've made further updates. I will try it again when I have some time. I've been using my Windows laptop for Android dev.
 
 Hopefully this is helpful to some. Please share any tips you might have!
-
-(Edit: Why is the code formatting broken on mobile??)
diff --git a/react-native-apple-m1.md b/react-native-apple-m1.md
@@ -0,0 +1,43 @@
+I knew I'd be taking a risk getting the M1 Macbook so here's some tips/learnings.
+
+My env:
+
+- cocoapods 1.10.1
+- xcode 12.4
+- macos big sur 11.2.3
+
+The iOS simulator build won't "just work". If you get errors like `ld: library not found for...` or swift compiler errors, then you need to disable arm64 for the simulator build. ReactNative 0.64 [added this change](https://github.com/react-native-community/rn-diff-purge/blob/45a22384013841340108a8f5a519b2d5d403452e/RnDiffApp/ios/RnDiffApp.xcodeproj/project.pbxproj#L564) for the debug and release builds but not for the pods, so we need to do the same for the pods:
+
+In Podfile, set `EXCLUDED_ARCHS[sdk=iphonesimulator*] = 'arm64'` for pods:
+
+```
+post_install do |installer|
+  react_native_post_install(installer)
+
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      # Disable arm64 builds for the simulator
+      config.build_settings['EXCLUDED_ARCHS[sdk=iphonesimulator*]'] = 'arm64'
+    end
+  end
+end
+```
+
+You won't be able to "Distribute" (create an .ipa from an archive build). You'll get an error like "IPA processing failed". This seems to be a bug with xcode 12.4. You will need to open XCode with Rosetta to fix this. 
+
+If you're using `xcodebuild` to generate an `.ipa`, you need to prepend `arch -x86_64` to the command:
+
+```
+# Create the .ipa from the archive
+arch -x86_64 xcodebuild \
+  -exportArchive \
+  -archivePath MyApp.xcarchive \
+  -exportPath MyAppExported \
+  -exportOptionsPlist ExportOptions.plist
+```
+
+For android, I don't really have many good tips. The android emulators didn't work and i tried the [Android Emulator M1 Preview](https://github.com/google/android-emulator-m1-preview) but it has many restrictions that prevented me from using it. I see now it's been added to the SDK Manager so perhaps they've made further updates. I will try it again when I have some time. I've been using my Windows laptop for Android dev.
+
+Hopefully this is helpful to some. Please share any tips you might have!
+
+(Edit: Why is the code formatting broken on mobile??)
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