You may need to manually include the SwiftSupport folder. This post may be helpful: https://stackoverflow.com/questions/57214466/ios-resigning-enterprise-ipa-with-app-store-certificate/62457388#62457388
ajzarn
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This may help you: https://stackoverflow.com/questions/57214466/ios-resigning-enterprise-ipa-with-app-store-certificate/62457388#62457388