From 5ae85308962c9cdc664bfd769cac6aaccfb256e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Martin?= <f.martin@fastmail.com>
Date: Sun, 21 Sep 2025 19:07:38 +0200
Subject: [PATCH] Fix TypeScript type error in example code

Without the `| null`, the following error appears during compilation:
```
TS2322: Type RefObject<HTMLDivElement | null> is not assignable to type RefObject<HTMLDivElement>
Type HTMLDivElement | null is not assignable to type HTMLDivElement
Type null is not assignable to type HTMLDivElement
```
---
 docs/01-app/03-api-reference/03-file-conventions/error.mdx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/01-app/03-api-reference/03-file-conventions/error.mdx b/docs/01-app/03-api-reference/03-file-conventions/error.mdx
index fba5b9382caee..0a86e3ffe1eee 100644
--- a/docs/01-app/03-api-reference/03-file-conventions/error.mdx
+++ b/docs/01-app/03-api-reference/03-file-conventions/error.mdx
@@ -219,7 +219,7 @@ export class GracefullyDegradingErrorBoundary extends Component<
   ErrorBoundaryProps,
   ErrorBoundaryState
 > {
-  private contentRef: React.RefObject<HTMLDivElement>
+  private contentRef: React.RefObject<HTMLDivElement | null>
 
   constructor(props: ErrorBoundaryProps) {
     super(props)