Unable to archive project with Xcode 11 beta 4

[marcosatanaka]

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Issue Description

What

I'm getting a lot of Undefined symbol for architecture arm64 errors when archiving the project in Xcode 11 beta 4. Even on xcode11 branch:

Undefined symbol: protocol witness table for Swift.UInt8 : Swift.CVarArg in Swift
Undefined symbol: _swift_initEnumMetadataSinglePayload
Undefined symbol: _swift_getTupleTypeMetadata
Undefined symbol: _swift_getFunctionTypeMetadata2
Undefined symbol: Foundation.Data.append(Foundation.Data) -> ()
[...]

Reproduce

• With Xcode 11 beta 4, create a new project
• Create a Podfile by running $ pod init
• Edit the Podfile as follows:

platform :ios, '13.0'
target 'KingfisherTest' do
  use_frameworks!
  pod 'Kingfisher', :git => 'https://github.com/onevcat/Kingfisher.git', :branch => 'xcode11'
end

• Run $ pod install
• Open the generated xcworkspace
• On Xcode, go to Product > Archive

Other Comment

• My CocoaPods version is 1.7.5.
• I've also tried with Kingfisher version 5.7.0 and got the same result.
• I was able to archive a project created with Xcode 10 using Kingfisher 5.7.0.

-- Edit:

I think maybe this is a problem with CocoaPods... Because I can successfully archive if I create a new project using Swift Package Manager pointing to the xcode11 branch.

[onevcat]

I believe it is an issue in Xcode 11 beta 4. Hopefully, Apple might fix it in the next beta. If you need to archive the project now, I suggest to check the workaround here: Carthage/Carthage#2825

[marcosatanaka]

Yep! This issue was fixed in Xcode 11 beta 5, so I'm closing it 🙌