diff --git a/components/diy_goodsGroup/diy_goodsGroup.js b/components/diy_goodsGroup/diy_goodsGroup.js
index 0183113..38255a6 100644
--- a/components/diy_goodsGroup/diy_goodsGroup.js
+++ b/components/diy_goodsGroup/diy_goodsGroup.js
@@ -75,7 +75,8 @@ Component({
 	  }
 	   	   		
       // 在组件实例进入页面节点树时执行
-      this.data.classstyle_id = nav_item.classstyle;
+	  if(nav_item)  
+         this.data.classstyle_id = nav_item.classstyle;
       this.data.goodscount = this.data.object.goodscount;
       this.data.wgroup =nav_item.wgroup;
 	  
@@ -353,8 +354,9 @@ Component({
 		wx.showLoading();
 						
 		var nav_item=this.data.object.nav_list[title_idx];	
-		
-		this.data.g_id = this.data.object.nav_list[title_idx].data;
+		this.data.g_id =[];
+		if(this.data.object.nav_list && this.data.object.nav_list[title_idx] && this.data.object.nav_list[title_idx].data)
+		     this.data.g_id=this.data.object.nav_list[title_idx].data;
 		var arr = [];		
 		for (var i = 0; i < this.data.g_id.length; i += this.data.goodscount) {
 		  arr.push(this.data.g_id.slice(i, i + this.data.goodscount));
@@ -364,18 +366,21 @@ Component({
 		this.data.requestData=[];
 				
 		// 在组件实例进入页面节点树时执行
-		this.data.classstyle_id = nav_item.classstyle;
-		this.data.wgroup =nav_item.wgroup;		
+		if(nav_item){
+			this.data.classstyle_id = nav_item.classstyle;
+			this.data.wgroup =nav_item.wgroup;	
+		}
+		
 		
 		this.data.is_recommend = this.data.is_hot=this.data.is_new=0;		
 		//推荐，热卖，新品			
-		if (nav_item.goodsclass == 1) {
+		if (nav_item && nav_item.goodsclass == 1) {
 		  this.data.is_recommend = 1
 		}
-		if (nav_item.goodsclass == 2) {
+		if (nav_item && nav_item.goodsclass == 2) {
 		  this.data.is_hot = 1
 		}
-		if (nav_item.goodsclass == 3) {
+		if (nav_item && nav_item.goodsclass == 3) {
 		  this.data.is_new = 1
 		}