diff --git a/SimsBasic/internal_impl.cpp b/SimsBasic/internal_impl.cpp
index 1578c4c..648f19d 100644
--- a/SimsBasic/internal_impl.cpp
+++ b/SimsBasic/internal_impl.cpp
@@ -50,7 +50,7 @@ std::shared_ptr<Serializable> RtWsEntity::newDefault() const {
 	newx->_runtime_name = this->_runtime_name;
 
 	for (auto c : this->_comps_list)
-		newx->append(c->defaultNew());
+		newx->append(std::static_pointer_cast<WsComponent>(c->newDefault()));
 	return newx;
 }
 
diff --git a/SimsBasic/simsbasic.h b/SimsBasic/simsbasic.h
index d96bee4..04e2b00 100644
--- a/SimsBasic/simsbasic.h
+++ b/SimsBasic/simsbasic.h
@@ -134,11 +134,6 @@ public:
 	/// <returns>插件名</returns>
 	virtual QString name() const = 0;
 
-	/// <summary>
-	/// 克隆一个具有相同数据的实例
-	/// </summary>
-	/// <returns>实例指针</returns>
-	virtual std::shared_ptr<WsComponent> defaultNew() const = 0;
 	/// <summary>
 	/// 绑定Entity
 	/// </summary>