myeclipse10的问题

1、导入项目后java文件头部出现The type java.lang.CharSequence cannot be resolved. It is indirectly referenced from requi

JDK1.8版本太高，降低一下JDK版本，降为1.6，项目右键-properties-Java builedpath-libraries-add library-JRE System Library-Alternate Library-选择Sun jdk1.6