问题:
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Mainclass is required).
问题原因是eclipse里面设置的默认为jre目录,更改为jdk,这样eclipse就运行在jdk上面
解决方法:
Add and set the JRE in Window->Preferences...->Java->Installed JREs:
JRE type:Standard VM JRE
Name: jdk1.6.0_18
JRE home directory: C:\Java\jdk1.6.0_18