diff --git a/CHANGELOG.md b/CHANGELOG.md
index cdb0392..373c0c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## [main] 0.0.4
 - 修复选择模型后点击确认跳转回 deepseek 的 bug
 - 修复 mcp 项目初始化点击工具全部都是空的 bug
+- 修复无法重新连接的 bug
 
 ## [main] 0.0.3
 
diff --git a/service/src/controller/index.ts b/service/src/controller/index.ts
index 2dd6819..ad8671d 100644
--- a/service/src/controller/index.ts
+++ b/service/src/controller/index.ts
@@ -7,10 +7,32 @@ import { panelLoadHandler, panelSaveHandler } from './panel';
 import { settingLoadHandler, settingSaveHandler } from './setting';
 import { ping } from './util';
 
+import { spawnSync } from 'node:child_process';
+
 
 // TODO: 支持更多的 client
 let client: MCPClient | undefined = undefined;
 
+function tryGetRunCommandError(command: string, args: string[] = [], cwd?: string): string | null {
+    try {
+        const result = spawnSync(command, args, {
+            cwd: cwd || process.cwd(),
+            stdio: 'pipe',
+            encoding: 'utf-8'
+        });
+
+        if (result.error) {
+            return result.error.message;
+        }
+        if (result.status !== 0) {
+            return result.stderr || `Command failed with code ${result.status}`;
+        }
+        return null;
+    } catch (error) {
+        return error instanceof Error ? error.message : String(error);
+    }
+}
+
 async function connectHandler(option: MCPOptions, webview: PostMessageble) {
 	try {
 		console.log('ready to connect', option);
@@ -27,11 +49,17 @@ async function connectHandler(option: MCPOptions, webview: PostMessageble) {
 		// 比如	error: Failed to spawn: `server.py`
   		//		  Caused by: No such file or directory (os error 2)
 
-		console.log('error', error);
+		let errorMsg = '';
+
+		if (option.command) {
+			errorMsg += tryGetRunCommandError(option.command, option.args, option.cwd);
+		}
+
+		errorMsg += (error as any).toString();
 		
 		const connectResult = {
 			code: 500,
-			msg: (error as any).toString()
+			msg: errorMsg
 		};
 		webview.postMessage({ command: 'connect', data: connectResult });
 	}