Making backups and migrating data Error

I backup and migrate data according to documents,https://docs.tutor.overhang.io/tutorials/datamigration.html
Although I successfully run tutor local start -d, I’m confused that the new platform has no previous data, and everything on the new platform is initial. I haven’t thought of the reason for this for a long time. I hope you can give me some help, thank you
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This seems like a duplicate of Making backups and migrating data Error. You should continue the discussion there.