C:\Code\XXX\strapi>npx @strapi/codemods migrate:plugin v3\plugins\my-plugin src\plugins\my-plugin
npx: installed 570 in 55.462s
info: copied v3 plugin to C:\Code\XXX\strapi\src\plugins\my-plugin
info: created C:\Code\XXX\strapi\src\plugins\my-plugin\strapi-admin.js
info: created C:\Code\XXX\strapi\src\plugins\my-plugin\strapi-server.js
info: moved controllers to C:\Code\XXX\strapi\src\plugins\my-plugin\server\controllers
info: moved services to C:\Code\XXX\strapi\src\plugins\my-plugin\server\services
error: ENOENT: no such file or directory, scandir 'C:\Code\XXX\strapi\src\plugins\my-plugin\config\functions'
Using Windows. Migrating from 3.6.10.