Eclipse无法启动/无法编译，解决办法

1.eclipse无法启动

     （1）检查JDK是否正确安装，Path是否设置？

     （2）启动提示jdk版本过低：解决办法：打开eclipse.ini文件，将下面参数改成本机的JDK版本

                 -Dosgi.requiredJavaVersion=1.5

2.Java eclipse 在Debuger窗口提示"JRE not compatible with workspace .class file compatibility 1.X"错误解决办法
For example my JDK vision is 1.4 I went to Window -> Preferences -> Java -> Installed JREs: the only JRE listed there was jre1.6.
That said, Under Java -> Compiler, the "Compiler compliance level" was set to 6.0 and I switched it to 4.0 - that got rid of the error message.