it seems that i forgot something i should do.

MetroLookAndFeel/build.gradle

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2013 huangyuhui <huanghongxun2008@126.com>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ */
 apply plugin: 'me.tatarka.retrolambda'
 
 if (!hasProperty('mainClass')) {