我的春天roo shell中有这个错误：
Welcome to Spring Roo. For assistance press CTRL+SPACE or type "hint" then hit ENTER.
roo> entity jpa --class ~.domain.SysUserTokenn
Unknown statement type
Created SRC_MAIN_JAVA\br\com\yazigitravel\eic\domain\SysUserTokenn.java
Undo create SRC_MAIN_JAVA\br\com\yazigitravel\eic\domain\SysUserTokenn.java
Unknown statement type
~.domain.SysUserTokenn roo> Unknown statement type
我正在使用JDK 1.7和Spring Roo 1.2.4.RELEASE与STS IDE。