diff --git a/CHANGELOG.md b/CHANGELOG.md
index bffc742f..baecec7b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.0.49 (2023-05-19)
+- **core**: 解决当组件被销毁，业务若异步（定时器）调用setState修改状态，可能出现路径错误问题。
+
 ## 0.0.48 (2023-05-18)
 - **core**: 解决style中属性WebkitLineClamp值被转换成字符串问题
 
@@ -19,12 +22,12 @@
 - **core**: 增加jsx-dev-runtime文件，给vite使用
 
 ## 0.0.40 (2023-03-08)
-- **core**: #103 使用Memo、React.forwardRef包装组件后，defaultProps失效
+- **core**: #103 使用Memo、forwardRef包装组件后，defaultProps失效
 - **core**: #104 --max-segment-num的style无法使用
 - **core**: 状态管理器的优化
 
 ## 0.0.39 (2023-02-21)
-- **core**: #102 使用eview-react组件Dialog时，关闭组件horizon报错，且无法再打开弹框
+- **core**: #102 使用eview组件Dialog时，关闭组件horizon报错，且无法再打开弹框
 
 ## 0.0.38 (2023-02-01)
 - **core**: 增加flushSync接口
@@ -58,7 +61,7 @@
 - **core**: fix 修改IE上报Symbol错误的问题
 
 ## 0.0.23 (2022-09-23)
-- **core**: #86 兼容ReactIs API
+- **core**: #86 兼容Is API
 
 ## 0.0.22 (2022-09-22)
 - **core**: #83 #75 #72 input支持受控
diff --git a/libs/horizon/package.json b/libs/horizon/package.json
index 71fad88d..35b506ef 100644
--- a/libs/horizon/package.json
+++ b/libs/horizon/package.json
@@ -4,7 +4,7 @@
   "keywords": [
     "horizon"
   ],
-  "version": "0.0.48",
+  "version": "0.0.49",
   "homepage": "",
   "bugs": "",
   "main": "index.js",
diff --git a/libs/horizon/src/dom/DOMOperator.ts b/libs/horizon/src/dom/DOMOperator.ts
index a7abe22d..f83893e5 100644
--- a/libs/horizon/src/dom/DOMOperator.ts
+++ b/libs/horizon/src/dom/DOMOperator.ts
@@ -141,7 +141,7 @@ export function newTextDom(text: string, processing: VNode): Text {
   return textNode;
 }
 
-// 提交vNode的类型为Component或者Text的更新
+// 提交vNode的类型为DomComponent或者DomText的更新
 export function submitDomUpdate(tag: string, vNode: VNode) {
   const newProps = vNode.props;
   const element: Element | null = vNode.realNode;
diff --git a/libs/horizon/src/dom/validators/ValidateProps.ts b/libs/horizon/src/dom/validators/ValidateProps.ts
index d6629b29..f025ce63 100644
--- a/libs/horizon/src/dom/validators/ValidateProps.ts
+++ b/libs/horizon/src/dom/validators/ValidateProps.ts
@@ -98,7 +98,7 @@ export function validateProps(type, props) {
     return;
   }
 
-  // 非内置的变迁
+  // 非内置的元素
   if (!isNativeElement(type, props)) {
     return;
   }
diff --git a/libs/horizon/src/renderer/TreeBuilder.ts b/libs/horizon/src/renderer/TreeBuilder.ts
index eb20b0ef..9798bb8a 100644
--- a/libs/horizon/src/renderer/TreeBuilder.ts
+++ b/libs/horizon/src/renderer/TreeBuilder.ts
@@ -179,6 +179,11 @@ function isEqualByIndex(idx: number, pathArrays: string[][]) {
 function getChildByIndex(vNode: VNode, idx: number) {
   let node = vNode.child;
   for (let i = 0; i < idx; i++) {
+    // 场景：当组件被销毁，业务若异步（定时器）调用setState修改状态，可能出现路径错误，此处进行保护。
+    if (node == null) {
+      return null;
+    }
+
     node = node.next;
   }
   return node;
diff --git a/libs/horizon/src/renderer/components/BaseClassComponent.ts b/libs/horizon/src/renderer/components/BaseClassComponent.ts
index de4ff351..70b09ee4 100644
--- a/libs/horizon/src/renderer/components/BaseClassComponent.ts
+++ b/libs/horizon/src/renderer/components/BaseClassComponent.ts
@@ -33,7 +33,7 @@ class Component<P, S, C> {
 
   setState(state: S, callback?: Callback) {
     if (isDev) {
-      console.error('Cant not call `this.setState` in the constructor of class component, it will do nothing');
+      console.error('Can not call `this.setState` in the constructor of class component, it will do nothing');
     }
   }
 }