org.apache.catalina.util.DefaultAnnotationProcessor java.lang.NoSuchMethodError:

1.flex工程--->add web project capabilities-->取消create web.xml和add J2EE libraries to buildpath 发生org.apache.catalina.util.DefaultAnnotationProcessor 异常
原因:Tomcat的jar包冲突
转换到MyEclipse视图,把项目中的Apache Tomcat v6.0 remove掉,再从tomcat中删除,重新部署,再启动tomcat
2.java.lang.NoSuchMethodError: javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContext;)Ljavax/servlet/jsp/JspApplicationContext;
大概要把we-inf/lib/jsp-api-2.0.jar包去掉

3.java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagAttributeInfo
也是上面的包有冲突

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