请问这个问题如何解决?(尽快给分的.谢谢!)

Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.

C:\>midp
Warning: cannot find lib subdirectory.
Please specify MIDP_HOME environment variable such that $MIDP_HOME\lib contains
the proper configuration files.
Warning: could not open config file(.\lib\internal.config): storageOpen(): No su
ch file or directory, .\lib\internal.config
Warning: could not open config file(.\lib\system.config): storageOpen(): No such
file or directory, .\lib\system.config

C:\>