From 0d2d22264fde3da02f5479adcf0a51ebe9f2dfff Mon Sep 17 00:00:00 2001
From: W3D <koliakolmikov@gmail.com>
Date: Sat, 4 Apr 2026 23:19:12 +0200
Subject: [PATCH] [General] [Fixed] - Fix missing format specifier in
 renderApplication invariant

The invariant call passes rootTag as a substitution argument but the
format string has no %s placeholder, so the error message never shows
the actual value of rootTag.
---
 .../react-native/Libraries/ReactNative/renderApplication.js     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-native/Libraries/ReactNative/renderApplication.js b/packages/react-native/Libraries/ReactNative/renderApplication.js
index 875e3fef4be0..04a272bfbf79 100644
--- a/packages/react-native/Libraries/ReactNative/renderApplication.js
+++ b/packages/react-native/Libraries/ReactNative/renderApplication.js
@@ -44,7 +44,7 @@ export default function renderApplication<Props extends Object>(
   displayMode?: ?DisplayModeType,
   useOffscreen?: boolean,
 ) {
-  invariant(rootTag, 'Expect to have a valid rootTag, instead got ', rootTag);
+  invariant(rootTag, 'Expect to have a valid rootTag, instead got %s', rootTag);
 
   const performanceLogger = scopedPerformanceLogger ?? GlobalPerformanceLogger;