From 03d56dcea79b37237bfc3c60ef0715ecce68cd7c Mon Sep 17 00:00:00 2001
From: Willy Liao <willy.liao@appier.com>
Date: Mon, 28 Mar 2022 16:09:19 +0800
Subject: [PATCH] Fix issue #3240

---
 lib/rules/no-unused-state.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rules/no-unused-state.js b/lib/rules/no-unused-state.js
index cf8cbf917f..a142890c11 100644
--- a/lib/rules/no-unused-state.js
+++ b/lib/rules/no-unused-state.js
@@ -371,7 +371,7 @@ module.exports = {
         }
         const scope = childScope.variableScope.childScopes.find((x) => x.block === node.value);
         const stateArg = node.value.params[1]; // probably "state"
-        if (!scope.variables) {
+        if (!scope || !scope.variables) {
           return;
         }
         const argVar = scope.variables.find((x) => x.name === stateArg.name);