刚开始学习jbuilder,大家帮帮我!
我今天刚开始用jbuilder9.0,打开一个没任何问题的java程序,一运行却出现如下问题,我该怎么解决啊,大家帮我一把!
"Frame1.java": Fatal Error: Unable to locate package java.lang in classpath or bootclasspath
"test.java": Fatal Error: Unable to locate package java.lang in classpath or bootclasspath
谢谢大家了!