diff --git a/ActionFailureException.java b/ActionFailureException.java
deleted file mode 100644
index 74811eb..0000000
--- a/ActionFailureException.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- * 
- */
-package net.micode.notes.gtask.exception;
-/*
- * 自定义异常类，表示操作失败。
- * 继承自RuntimeException，用于在操作失败时抛出异常。
- */
-public class ActionFailureException extends RuntimeException {
-    private static final long serialVersionUID = 4425249765923293627L;
-
-    public ActionFailureException() {  //默认构造函数。
-        super();
-    }
-/*
- *  带错误信息的构造函数。
- * @param paramString 错误信息
- */
-    public ActionFailureException(String paramString) {
-        super(paramString);
-    }
-/*
- * 带错误信息和原因的构造函数。
- * @param paramString   错误信息
- * @param paramThrowable 原因
- */
-    public ActionFailureException(String paramString, Throwable paramThrowable) {
-        super(paramString, paramThrowable);
-    }
-}