Playframework 1.2.4演变不起作用

Question

我无法生成1.sql：

播放演进或播放演变提供相同的输出

~        _            _ 
~  _ __ | | __ _ _  _| |
~ | '_ \| |/ _' | || |_|
~ |  __/|_|\____|\__ (_)
~ |_|            |__/   
~
~ play! master-4877ea8, http://www.playframework.org
~
~ Connected to jdbc:mysql://localhost/artoodb2?useUnicode=yes&characterEncoding=UTF-8&connectionCollation=utf8_general_ci
~ Application revision is 0 [da39a3e] and Database revision is 0 [da39a3e]
~
~ Your database is up to date
~

Answer 1

保持不变，然后在2.sql中创建所需的进化