diff --git a/website/docs/guides/docs/docs-introduction.mdx b/website/docs/guides/docs/docs-introduction.mdx
index 3892c316be04..76a84b675009 100644
--- a/website/docs/guides/docs/docs-introduction.mdx
+++ b/website/docs/guides/docs/docs-introduction.mdx
@@ -85,9 +85,62 @@ export default {
   ],
 };
 ```
-
 Note that you **don't necessarily have to give up on using the blog** or other plugins; all that `routeBasePath: '/'` does is that instead of serving the docs through `https://example.com/docs/some-doc`, they are now at the site root: `https://example.com/some-doc`. The blog, if enabled, can still be accessed through the `blog/` subroute.
 
+You will also need to remove the following:
+
+```js title="docusaurus.config.js"
+  themeConfig:
+    /** @type {import('@docusaurus/preset-classic').ThemeConfig} */
+    ({
+      // Replace with your project's social card
+      image: 'img/docusaurus-social-card.jpg',
+      navbar: {
+        title: 'My Site',
+        logo: {
+          alt: 'My Site Logo',
+          src: 'img/logo.svg',
+        },
+        items: [
+          {
+            type: 'docSidebar',
+            sidebarId: 'tutorialSidebar',
+            position: 'left',
+            label: 'Tutorial',
+          },
+          {to: '/blog', label: 'Blog', position: 'left'},
+          {
+            href: 'https://github.com/facebook/docusaurus',
+            label: 'GitHub',
+            position: 'right',
+          },
+        ],
+      },
+```
+Removing the docSidebar item will allow the docs mode to work with no error.
+
+```js title="docusaurus.config.js"
+  themeConfig:
+    /** @type {import('@docusaurus/preset-classic').ThemeConfig} */
+    ({
+      // Replace with your project's social card
+      image: 'img/docusaurus-social-card.jpg',
+      navbar: {
+        title: 'My Site',
+        logo: {
+          alt: 'My Site Logo',
+          src: 'img/logo.svg',
+        },
+        items: [
+          {to: '/blog', label: 'Blog', position: 'left'},
+          {
+            href: 'https://github.com/facebook/docusaurus',
+            label: 'GitHub',
+            position: 'right',
+          },
+        ],
+      },
+```
 Don't forget to put some page at the root (`https://example.com/`) through adding the front matter:
 
 ```md title="docs/intro.md"