classpath
Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.
生成失败（总时间：1 秒）
------解决方案--------------------看起来好像是你的ant有点问题
------解决方案--------------------Remember that for JAR files to be visible to Ant tasks implemented
in ANT_HOME/lib, the files must be in the same directory or on the
classpath
很明显的 配置路径问题
the files must be in the same directory or on the
classpath
classpath
directory 这2个重新配置过
运行HelloWorld~~不太可能是程序的错误 可能是你配置问题
