The path in the `upgrade_d7_file.yml` migration file is different because this is executed inside the docker container so in the docker container the <ProjectRoot> is: `/var/www/html/` but no need to re-create those folders in the host machine.
Use `ddev describe` to see what the host and port are for your local environment, and use that in the first line here:
```
mysql --host=127.0.0.1 --port=32779 --user=root --password=root --database=db
CREATE DATABASE drupal7;
GRANT ALL ON drupal7.* to 'db'@'%' IDENTIFIED BY 'db';
```
Now `ctrl+c` out of there, and, again substituting the host and port for your own, import your file from whereever you placed and named your db SQL dump: