Rename the project.

Wox/Helper/Log.cs

@@ -0,0 +1,15 @@
+using System.Reflection;
+using log4net;
+
+namespace Wox.Helper
+{
+    public class Log
+    {
+        private static ILog fileLogger = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        public static void Error(string msg)
+        {
+            fileLogger.Error(msg);
+        }
+    }
+}