Eclipse中JDK不兼容异常（class file has wrong version 49.0, should be 48.0）的解决方法
2007-03-22 12:49
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在eclipse里改变项目的属性设置：[project]->[properties]->[Java Compiler]->选中Enable project specific settings,在JDK Compliance->Compiler compliance level中选1.4（或其它你认为合适的），软件会自动提示需要重新编译，重新编译后运行就ok了。
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