diff --git a/es6.xtype.js b/es6.xtype.js
index 70b4d3db7..854728add 100644
--- a/es6.xtype.js
+++ b/es6.xtype.js
@@ -60,12 +60,15 @@ function search(src, clzName) {
     srcPath.shift();
     srcPath.pop();
 
+
+
     const findDstIndexPath = (dstArr, startIndex) => {
         let i = startIndex;
 
-        while (!isExist(path.resolve("src", dstArr.slice(0, i + 1).join("/"), "index.js"))) {
+        while (!isExist(path.resolve("src", dstArr.slice(0, i + 1).join("/"), "index.js")) && i < dstArr.length) {
             i++;
         }
+     
         if (i < dstArr.length) {
             return dstArr.slice(startIndex, i + 1).join("/");
         } else {