If you use firebase crashlytics and it says Upload missing required dSYMs, here is how you can upload it manually.

Upload DSYMs Manually

Here is a All about Missing dSYMs — Fabric for Apple documentation usually link for uploading dSYMs for iOS.

First archive the project as normal, and click Download dSYMs button in Xcode’s Organizer.

Now open project files, you can find a folder called dSYMs. Zip the folder and upload manually to the console.