[Getting this error on uploading app on Test Flight. DOn't worry Just follow these steps]
[1] Go to Xcode preference
[2] Open Accounts tab
[3] Click on manage Certificates
[4] At bottom 'Apple Distribution Certificates' ,there is your expire certificate. Just delete it and try to upload again
App upload to Test Flight successfully.
[1]: https://i.stack.imgur.com/Pjxkg.png
Itsmanprchahal
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