iOS error: 'WebRTC/WebRTC.h' file not found

[ycherniavskyi]

Just want to summarise all solutions of this error (and close relevant issues #755, #966, #773, #713, #892).

[ycherniavskyi]

Reason

So the reason of this error is actually this warning:

warning: [CP] WebRTC.xcframework: Unable to find matching slice in 'ios-arm64_armv7 ios-arm64_x86_64-simulator' for the current build architectures (arm64 x86_64 i386) and platform (-iphonesimulator).

Solution

Add in file ./ios/Podfile next snippet:

#...
post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    # snippet begin
    if target.name == "WebRTC-SDK"
      target.build_configurations.each do |build_configuration|
        build_configuration.build_settings['EXCLUDED_ARCHS[sdk=iphonesimulator*]'] = '$(inherited) i386'
      end
    end
    # snippet end
  end
end

Note

For sure, this error could be resolved in different ways. Provided in solution way is just analog what Flutter does for Flutter plugins. But because WebRTC-SDK technically is not a Flutter plugin, then this must be done manually.

If someone would like to explain why XCode wants to build i386 architecture, then welcome in the comments 😉.

[tinhnvc-gadget]

Reason

So the reason of this error is actually this warning:

warning: [CP] WebRTC.xcframework: Unable to find matching slice in 'ios-arm64_armv7 ios-arm64_x86_64-simulator' for the current build architectures (arm64 x86_64 i386) and platform (-iphonesimulator).

Solution

Add in file ./ios/Podfile next snippet:

#...
post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    # snippet begin
    if target.name == "WebRTC-SDK"
      target.build_configurations.each do |build_configuration|
        build_configuration.build_settings['EXCLUDED_ARCHS[sdk=iphonesimulator*]'] = '$(inherited) i386'
      end
    end
    # snippet end
  end
end

Note

For sure, this error could be resolved in different ways. Provided in solution way is just analog what Flutter does for Flutter plugins. But because WebRTC-SDK technically is not a Flutter plugin, then this must be done manually.

If someone would like to explain why XCode wants to build i386 architecture, then welcome in the comments 😉.

I have the same error with flutter_webrtc: 0.9.12.
Please check again, thanks

[mwk24]

This did not resolve my issue, which was building using "flutter build ipa".

I fixed it thusly.... (seems webRTC doesn't support arm7, so wouldn't be possible to build for that)

[ycherniavskyi]

I could say even more - Flutter drop support of 32-bit iOS devices.

[lyskouski]

Raised back with Flutter 3.13.6 for "flutter build ipa".