'exported: true' has no effect in '_specialize' attribute in Xcode 12.5

Question

On my machine, Xcode has automatically upgraded itself to latest version Xcode 12.5. And I'm facing issue now in building my project. It was running perfectly yesterday with Xcode 12.4, no code change nor library change. Literally the same codebase.

Anyone face this issue with solution fixed?

Error message received:

'exported: true' has no effect in '_specialize' attribute

Tried (but non is helping):

1. Restart machine
2. Kill and restart Xcode
3. Clean build
4. Remove derived data

Answer 1

I have resolved the issue with running pod update instead of pointing to a specific version in my Podfile

Otherwise, you could also follow what @coryhowell pointed out,

removed the pod and added it as a Swift Package (Version 1.4.0)

Podfile

platform :ios, '11.4'
use_frameworks!
inhibit_all_warnings!

target 'myAppp' do
  pod 'Alamofire', '~> 4.8.1'
  pod 'CryptoSwift'
end

Podfile.lock - auto-created, then pointed to latest version of the CryptoSwift

PODS:
  - Alamofire (4.8.2)
  - Countly (20.11.1):
    - Countly/Core (= 20.11.1)
  - Countly/Core (20.11.1)
  - Crashlytics (3.12.0):
    - Fabric (~> 1.9.0)
  - CryptoSwift (1.4.0)
  - Device (3.1.2)
  - Fabric (1.9.0)

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Answer 2

I'm having the same issue with the CryptoSwift pod. Xcode 12.5 is using Swift 5.4. I don't think CryptoSwift has been updated for swift 5.4 yet. I switched back to Xcode 12.4 and ran pod install. It's building again on Xcode 12.4. The Latest version of CryptoSwift only supports Swift 5.3

Update

I was unable to get CryptoSwift to update past version 1.2.0 using cocoa pods. I removed the pod and added it as a Swift Package (Version 1.4.0). I was able to build using Xcode 12.5

Confirmed this was fixed in CryptoSwift 1.3.2

Answer 3

1. remove the old version
2. reinstall the latest version