diff --git a/src/main/java/neatlogic/framework/dto/WorkAssignmentUnitVo.java b/src/main/java/neatlogic/framework/dto/WorkAssignmentUnitVo.java
index 273a58db51ca895f5d1b342672f36d66a0a23a00..519d8c66b8eb1fe3b2f5a30f256707323c519172 100644
--- a/src/main/java/neatlogic/framework/dto/WorkAssignmentUnitVo.java
+++ b/src/main/java/neatlogic/framework/dto/WorkAssignmentUnitVo.java
@@ -28,6 +28,9 @@ public class WorkAssignmentUnitVo {
     @EntityField(name = "common.isdeleted", type = ApiParamType.ENUM)
     private Integer isDelete;
 
+    public WorkAssignmentUnitVo() {
+    }
+
     public WorkAssignmentUnitVo(UserVo userVo){
         this.initType = GroupSearch.USER.getValue();
         this.uuid = userVo.getUuid();