Elixlsx No clause matching

Hello everyone, so I was trying to follow a tutorial on how to export files to an xlsx format, and it would work just fine. The problem is when using a field that is of an Ecto.Date, it shows the following error no case clause matching: #Ecto.Date<1970-01-01>
Any help would be much appreciated, thank you everyone

I have to guess since I don’t know what tutorial you are following, but maybe it expects a Date struct from Elixir’s standard library?

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