当我们的代码出现这个错误时：The type java.lang.CharSequence cannot be resolved. It is indirectly referenced from required .class files；就是当你在myeclipse引用了不同版本的JDK，解决方法如下图：
The type java.lang.CharSequence cannot be resolved. It is indirectly referenced from required .class files
原文：https://www.cnblogs.com/xsy20181001/p/9740472.html
