diff --git a/public/react/src/modules/tpm/TPMRepositoryComponent.js b/public/react/src/modules/tpm/TPMRepositoryComponent.js
index c9735d46a..027f3f705 100644
--- a/public/react/src/modules/tpm/TPMRepositoryComponent.js
+++ b/public/react/src/modules/tpm/TPMRepositoryComponent.js
@@ -15,6 +15,7 @@ import RepositoryCodeEditor from './shixunchild/Repository/RepositoryCodeEditor'
 class TPMRepositoryComponent extends Component {
     constructor(props) {
       super(props)
+      this.nameTypeMap = {}
       let pathArray = []
       var splitArray = window.location.pathname.split('shixun_show/');
       if (splitArray[1]) {
@@ -38,7 +39,7 @@ class TPMRepositoryComponent extends Component {
     
 
     componentDidMount = () => {
-      this.nameTypeMap = {}
+      
       this.fetchRepo()
     }
     setContentWidth100 = (flag) => {
@@ -139,7 +140,7 @@ class TPMRepositoryComponent extends Component {
       let fileInPathArray = false;
       if (newPathArray.length) {
         fileInPathArray = this.nameTypeMap[newPathArray[newPathArray.length - 1]] ? this.nameTypeMap[newPathArray[newPathArray.length - 1]] !== 'tree' 
-            : (listItem.type !== 'tree' && this._isFileName( newPathArray[newPathArray.length - 1] ))
+            : (listItem ? listItem.type !== 'tree' : this._isFileName( newPathArray[newPathArray.length - 1] ))
         if ( fileInPathArray ) {
           urlNewPathArray = newPathArray.slice(0, newPathArray.length - 1)
         }