在jb中打开jive 为什么会有这个错误??

Could not find G:/doc/program/e-store/lib/activation.jar to copy to WebApp forum; file is defined as element of library Mail
G:/doc/program/e-store/lib/activation.jar (The system cannot find the file specified)
请高手指点!

在编译时选择注意选包

“注意选包”在那里设置呀,请教了?