方法错误

app/Service/PurchaseOrderService.php

@@ -302,7 +302,7 @@ class PurchaseOrderService extends Service
         $bool = PaymentReceiptInfo::where('del_time',0)
             ->where('type',PaymentReceiptInfo::type_three)
             ->where('data_order_no', $order['order_number'])
-            ->exist();
+            ->exists();
         if($bool) return [false, '采购已存在收付款单记录，请先删除收付款单据！'];
 
         try{

app/Service/SalesOrderService.php

@@ -483,7 +483,7 @@ class SalesOrderService extends Service
         $bool = PaymentReceiptInfo::where('del_time',0)
             ->where('type',PaymentReceiptInfo::type_three)
             ->where('data_order_no', $sale_order['order_number'])
-            ->exist();
+            ->exists();
         if($bool) return [false, '合同已存在收付款单记录，请先删除收付款单据！'];
 
         try {