diff --git a/ActionFailureException.txt b/ActionFailureException.txt
new file mode 100644
index 0000000..fad6de8
--- /dev/null
+++ b/ActionFailureException.txt
@@ -0,0 +1,45 @@
+/*
+ * 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);
+    }
+}