diff --git a/bin/thread.js b/bin/thread.js
index 8f2b29b..2b0ae6b 100644
--- a/bin/thread.js
+++ b/bin/thread.js
@@ -22,7 +22,7 @@ function DecodeGenerator(){
   var charset;
 
   return function (data){
-    if (data) {
+    if (Buffer.isBuffer(data)) {
       if (charset === undefined) {
         charset = jschardet.detect(data).encoding;
       }
diff --git a/static/js/components/app-main/index.js b/static/js/components/app-main/index.js
index 88474a2..583f5eb 100644
--- a/static/js/components/app-main/index.js
+++ b/static/js/components/app-main/index.js
@@ -216,7 +216,6 @@ module.exports = Vue.component('app-main', {
         case 'data':
           break;
         case 'error':
-          data = '\u001b[31m发生错误: \u001b[0m' + data + '\r\n';
           break;
         case 'close':
           data = '\u001b[32m' + (status === 1 ? '执行' : '结束') + '命令成功\u001b[0m\r\n';