刚才遇到这个问题
Android requires compiler compliance level 5.0 or 6.0. Found '1.4' instead. Please fix project properties
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.
来源：http://www.cnblogs.com/sunjialiang/archive/2011/08/25/2152715.html