添加对 Core 的直接引用

RhythmBaseCore/Exceptions/OverwriteNotAllowedException.cs

@@ -0,0 +1,25 @@
+namespace RhythmBase.Exceptions
+{
+	/// <summary>
+	/// Exception thrown when an attempt to overwrite a file is not allowed.
+	/// </summary>
+	/// <remarks>
+	/// Initializes a new instance of the <see cref="OverwriteNotAllowedException"/> class with a specified error message and a reference to the inner exception that is the cause of this exception.
+	/// </remarks>
+	/// <param name="filepath">The file path that caused the exception.</param>
+	/// <param name="referType">The type that caused the exception.</param>
+	public class OverwriteNotAllowedException(string filepath, Type referType) : RhythmBaseException(filepath)
+	{
+		/// <summary>
+		/// Gets or sets the file path that caused the exception.
+		/// </summary>
+		public string FilePath { get; set; } = filepath;
+
+		/// <summary>
+		/// Gets the message that describes the current exception.
+		/// </summary>
+		public override string Message => string.Format("Cannot save file '{0}' because overwriting is disabled by the settings and a file with the same name already exists.\r\nTo correct this, change the path or filename or set the OverWrite property of {1} to false.", FilePath, _referType.Name);
+
+		private readonly Type _referType = referType;
+	}
+}