Magento 2 Luma Theme inherence error 2.2.1 CE

Question

I have a problem when I add a new theme in my new Magento 2.2.1 CE from scratch, and I try to inherent Luma theme. I sow to many examples but nothing work for me. If I put as parent blank work well but not for Luma. I created inside

app/design/frontend/[vendor_name]/[theme_name]/

my files registrations.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::THEME,
    'frontend/[vendor_name]/[theme_code]',
    __DIR__
);

and theme.xml

<theme xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Config/etc/theme.xsd">
    <title>Mbs Tutorial Theme</title>
    <parent>Magento/luma</parent>   
</theme>

On the database my theme parent_id is Luma (id = 2), and I added to the store view design without problems, but they don't inherent Luma.

Answer 1

Looks good. Add new css file to your theme (you can copy from parent), flush cache and run static content deploy