Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead 在解决问题Underscores can only be used with source level 1.7 or greater时,将compiler compliance level改为1.7后遇到此错误. 网上解决办法为http://www.cnblogs.com/henryxu/archive/2012/08/07/2626964.htm…
The compiler compliance setting tells the compiler to pretend it's a different version of Java. The Java 8 compiler will produce class files in the Java 8 version of the class file format, and accept Java 8 source files. JRE 6 can't load this version…