diff --git a/components/dashboard/network-timeline.tsx b/components/dashboard/network-timeline.tsx
index 12a217d..83e1bf5 100644
--- a/components/dashboard/network-timeline.tsx
+++ b/components/dashboard/network-timeline.tsx
@@ -1313,7 +1313,7 @@ export function NetworkTimeline({
                               </div>
                               {/* 复制按钮 */}
                               {(() => {
-                                let errorInfo;
+                                let errorInfo: { hasError: boolean; errorMessage: string; errorCode?: string };
                                 if (task.level === 0) {
                                   const originalTask = tasks.find((t: any) => t.task_id === task.id);
                                   if (!originalTask) return null;
@@ -1671,7 +1671,7 @@ export function NetworkTimeline({
                       {/* 错误信息显示 */}
                       {task.statusCode >= 400 && (() => {
                         // 根据任务层级选择不同的错误信息获取方式
-                        let errorInfo;
+                        let errorInfo: { hasError: boolean; errorMessage: string; errorCode?: string };
                         if (task.level === 0) {
                           // 主任务
                           const originalTask = tasks.find((t: any) => t.task_id === task.id);