"ScriptModel.java": cannot access java.util.TreeMap; bad class file: C:\Program Files\Java\jdk1.6.0_20\jre\lib\alt-rt.jar\java\util\TreeMap.class, class file has wrong version 50.0, should be 49.0, Please remove or make sure it appears in the correct subdirectory of the classpath. at line 6, column 18开发工具是jbilder,jdk是1.6.0_20,我在JBilder的工程属性里,把Target VM调成了“All Java SDKs”还是不行。请问这个问题该怎么解决?
private final Map<String, Script<G, A, R>> scripts = new TreeMap<String, Script<G, A, R>>();
这样写的。这个工程在笔记本上是没有问题的,同样是jdk1.6.0_20,我把src拷贝到台式机就出现这样的问题了。另外,TreeMap也提示同样的问题。
eclipse,在window->Preferences->java->compiler修改。Good Luck.
旧版的JDK?旧版的就只有JBuilder2006自带的一个jdk1.5了,可我并没用啊!
该怎么做才能解决这个问题?
而且JBuilder2006都运行不了了!
“Projects -->Default project propertities -->Paths -->JDK”