Clarify that arm64 Simulators are not supported for MLKit

[jeancamilo]

Hi guys, i'm getting this error every time I try to build for IOS.

Can anyone help me how to solve?
Right now, I'm using mobile_scanner 5.0.0-beta.3, because I know the mlkit was update in beta.3.

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[navaronbracke]

The first warning seems unrelated.

However, the second warning indicates that you're unable to build for arm64.
Since you have an ARM Mac, can you confirm that you are either testing on an ARM iOS Simulator or an ARM iOS device?

IIRC MLKit does support ARM and we also don't specify its exclusion in the podspec here https://github.com/juliansteenbakker/mobile_scanner/blob/master/ios/mobile_scanner.podspec

The Simulator is excluded, though, as specified on Cocoapods.org: https://github.com/CocoaPods/Specs/blob/master/Specs/b/5/4/MLKitBarcodeScanning/5.0.0/MLKitBarcodeScanning.podspec.json

Just to be sure, you specified building for the ARM64 architecture in your project settings?

[jeancamilo]

Thanks for your response @navaronbracke.
I'm trying to embed my application to a native one. So, the time native code try to build using my SDK, it shows me this error and I can't build.
I have these lines in my generated podspec: (maybe add "excluded archs arm64" works?)

s.ios.deployment_target = '12.0'
s.swift_version = '5.0'
s.static_framework = true
s.user_target_xcconfig = { 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
s.pod_target_xcconfig = { 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }

Build my Flutter application with mobile_scanner works well, but in this case, building my sdk in a native code, don't. I tried to build from an intel mac but I don't have success too.

[jeancamilo]

Update:
I added those configs to my podspec:

  s.user_target_xcconfig = { 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386 arm64 armv7' }
  s.pod_target_xcconfig = { 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386 arm64 armv7' }

And the error changed a little, but it persists :(

[dgugolf]

I have related issue when try to use different flavors for flutter on iOS, it says Unsupported swift architecture. No idea haw to fix it. So with default scheme it works, but If I make a copy of default one it says error.

[parthpatel-simbiotik]

I am also facing the same issue in v5.1.1. I am using XCode 15.4. Using MacBook Pro (M1 Pro)
Running on my iPhone 14 Pro Device

Please help how to fix this.

[wdcs-vivekmakvana]

Facing same issue... Any update on this.

[GerlanStanley]

I have related issue when try to use different flavors for flutter on iOS, it says Unsupported swift architecture. No idea haw to fix it. So with default scheme it works, but If I make a copy of default one it says error.

I had the same problem using flavors

[fulstadev]

I have related issue when try to use different flavors for flutter on iOS, it says Unsupported swift architecture. No idea haw to fix it. So with default scheme it works, but If I make a copy of default one it says error.

@juliansteenbakker I'm having the same exact problem, and also with the flutter_secure_storage package, also coming from steenbaker.dev.

I could unfortunately reproduce the problem over and over by following the official step-by-step guider for the setup of flutter ios flavors, tried to fix it, but I always get the exact same mentioned error; User-Defined Issue (Xcode): Unsupported Swift architecture, for the two mentioned packages.

I'm wondering if this may be a systematic error somewhere; or if not; do you know why this could happen?

[GerlanStanley]

I have related issue when try to use different flavors for flutter on iOS, it says Unsupported swift architecture. No idea haw to fix it. So with default scheme it works, but If I make a copy of default one it says error.

@juliansteenbakker I'm having the same exact problem, and also with the flutter_secure_storage package, also coming from steenbaker.dev.

I could unfortunately reproduce the problem over and over by following the official step-by-step guider for the setup of flutter ios flavors, tried to fix it, but I always get the exact same mentioned error; User-Defined Issue (Xcode): Unsupported Swift architecture, for the two mentioned packages.

I'm wondering if this may be a systematic error somewhere; or if not; do you know why this could happen?

For me what solved it was adding these lines to the Podfile:

post_install do |installer|
      # ADD THIS
      installer.pods_project.build_configurations.each do |config|
          config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64"
      end
      ...

[navaronbracke]

@GerlanStanley That workaround seems to align with the fact that arm64 is not supported, I wonder if we can make it supported (as on M1 Macs the simulators would be arm64)

[fulstadev]

But don't all of the current iOS devices use the arm64 architecture, isn't that rather modern and excluding it could be risky? Or am I completely wrong here?