From a296d727b69a508daacabb44416c7713f1b3913f Mon Sep 17 00:00:00 2001
From: ozaki <29860391+OzakIOne@users.noreply.github.com>
Date: Fri, 9 Feb 2024 19:34:32 +0100
Subject: [PATCH] docs(blog-only): add warning and improve error log (#9839)

---
 .../src/client/index.ts                        | 18 ++++++++++++++----
 website/docs/blog.mdx                          |  6 ++++++
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/packages/docusaurus-plugin-content-docs/src/client/index.ts b/packages/docusaurus-plugin-content-docs/src/client/index.ts
index 335729b898fd..32dd0d926133 100644
--- a/packages/docusaurus-plugin-content-docs/src/client/index.ts
+++ b/packages/docusaurus-plugin-content-docs/src/client/index.ts
@@ -86,10 +86,20 @@ export const useAllDocsData = (): {[pluginId: string]: GlobalPluginData} =>
       }
     | undefined) ?? StableEmptyObject;
 
-export const useDocsData = (pluginId: string | undefined): GlobalPluginData =>
-  usePluginData('docusaurus-plugin-content-docs', pluginId, {
-    failfast: true,
-  }) as GlobalPluginData;
+export const useDocsData = (pluginId: string | undefined): GlobalPluginData => {
+  try {
+    return usePluginData('docusaurus-plugin-content-docs', pluginId, {
+      failfast: true,
+    }) as GlobalPluginData;
+  } catch (error) {
+    throw new Error(
+      `You are using a feature of the Docusaurus docs plugin, but this plugin does not seem to be enabled${
+        pluginId === 'Default' ? '' : ` (pluginId=${pluginId}`
+      }`,
+      {cause: error as Error},
+    );
+  }
+};
 
 // TODO this feature should be provided by docusaurus core
 export function useActivePlugin(
diff --git a/website/docs/blog.mdx b/website/docs/blog.mdx
index 43a0c23a53d2..1fb3ace11c1b 100644
--- a/website/docs/blog.mdx
+++ b/website/docs/blog.mdx
@@ -625,6 +625,12 @@ Don't forget to delete the existing homepage at `./src/pages/index.js` or else t
 
 :::
 
+:::warning
+
+If you disable the docs plugin, don't forget to delete references to the docs plugin elsewhere in your configuration file. Notably, make sure to remove the docs-related navbar items.
+
+:::
+
 :::tip
 
 There's also a "Docs-only mode" for those who only want to use the docs. Read [Docs-only mode](./guides/docs/docs-introduction.mdx) for detailed instructions or a more elaborate explanation of `routeBasePath`.