404 Error - .txt cannot be found, upload Astra template


I don’t understand what is going on here or how to fix it, and Google searches as well as searches in this community are not giving me any usable information. I appreciate any advice.

I am using Local by Flywheel, and trying to import a pre-made Astra Site Theme. I have already installed and activated the Astra site. This error happens when I try to upload one of Astra’s free starte site templates.

I get a 404 Error that the “requested url /app/public/wp-content/uploads/astra-sites/import-17-Dec-2018-05-11-49.txt cannot be found.”