Invalid Swift Support when submitting App

Solved for me in June 2020.

MacOS Catalina 10.15.5

Xcode Version 11.5 (11E608c)

Check that Command line tools(Xcode->Preferences->Locations) have this value

Configure PROJECT in project settings

1. Click to you project in Xcode.
2. Select project name
3. Set filter to Basic and Levels
4. Find Always Embed Swift Standard Libraries field (if not found - play with filters)
5. Set YES to this field for PROJECT(debug and release)

Configure TAGET in target settings

1. Click to you project in Xcode.
2. Select target name
3. Set filter to Basic and Levels
4. Find Always Embed Swift Standard Libraries field (if not found - play with filters)
5. Set YES to this field for PROJECT(debug and release) and set NO to this field for TARGET(debug and release) see example

Clean project and create archive(Product->Archive)

In the dialog window right click to the created archive name -> Show in Finder

Right click to the archive name in Finder -> Show Package Contents

Delete SwiftSupport folder here

After that upload your build using AppStore Connect in Xcode with default settings.

I received this same email after uploading an .ipa file to App Store Connect through the Transporter app. The following is where I went wrong: I distributed the app using ad hoc.

The following steps are the solution for my error:

1. Archive app
2. Distribute on TestFlight and the App Store
3. Export
4. Open ExportOptions.plist in the newly created folder from the export.
5. Make sure the method property has the value app-store if you are uploading to App Store Connect/TestFlight like me.
6. Drag and drop the exported .ipa file to Transporter.
7. Deliver your app to upload it.

And that's it!

Original answer here: https://stackoverflow.com/a/62568526/10374366

I don’t think it’s a bug. But the best thing you can do is to just reinstall Xcode from the AppStore.

The solution here was in this "Invalid Swift Support - The SwiftSupport folder is missing" with Xcode 7.3.1. We needed to use the new -exportOptionsPlist flag with xcodebuild instead of the older -exportFormat and -exportWithOriginalSigningIdentity flags. The plist just needs to have the method key set to app-store.

Try upgrading to swift 5.0 and going to workspace settings, build system and set it to New Build System. This solved it for me in a React Native project using native iOS views. As far as I know swift 5 makes doesn't use the swift support folder any more.