Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties.

Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead.报错！自己到别的电脑上做的项目导入到自己电脑中时报错，提示Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties.看网上有人说可用如下方法： 
1.项目右键 ->android tools->Fix Project 
2.如果不可以，检查Project->Properties->Java Compiler 
确认JDK compliance被设置为1.6,并且enable specific seetings