diff --git a/src/main/services/knowledge/KnowledgeService.ts b/src/main/services/knowledge/KnowledgeService.ts
index f34a2b31b6..199f597eed 100644
--- a/src/main/services/knowledge/KnowledgeService.ts
+++ b/src/main/services/knowledge/KnowledgeService.ts
@@ -115,7 +115,7 @@ class KnowledgeService {
     const framework = knowledgeFrameworkFactory.getFramework(base)
     await framework.initialize(base)
   }
-  public async reset(_: Electron.IpcMainInvokeEvent, { base }: { base: KnowledgeBaseParams }): Promise<void> {
+  public async reset(_: Electron.IpcMainInvokeEvent, base: KnowledgeBaseParams): Promise<void> {
     const framework = knowledgeFrameworkFactory.getFramework(base)
     await framework.reset(base)
   }
diff --git a/src/main/services/knowledge/LangChainFramework.ts b/src/main/services/knowledge/LangChainFramework.ts
index c281c7ad94..a3c48e1e09 100644
--- a/src/main/services/knowledge/LangChainFramework.ts
+++ b/src/main/services/knowledge/LangChainFramework.ts
@@ -103,6 +103,8 @@ export class LangChainFramework implements IKnowledgeFramework {
     if (fs.existsSync(dbPath)) {
       fs.rmSync(dbPath, { recursive: true })
     }
+    // 立即重建空索引，避免随后加载时报错
+    await this.createDatabase(base)
   }
 
   async delete(id: string): Promise<void> {
diff --git a/src/renderer/src/services/WebSearchService.ts b/src/renderer/src/services/WebSearchService.ts
index fd6682fd39..8fc41f450e 100644
--- a/src/renderer/src/services/WebSearchService.ts
+++ b/src/renderer/src/services/WebSearchService.ts
@@ -245,7 +245,7 @@ class WebSearchService {
       created_at: Date.now(),
       updated_at: Date.now(),
       version: 1,
-      framework: 'embedjs'
+      framework: 'langchain'
     }
 
     // 更新LRU cache