网上说把自动生成的Javaee文件删掉就行，但我这个没有生成，如何解决？

严重: End event threw exception
java.lang.IllegalArgumentException: Can't convert argument: null
at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:960)
at org.apache.tomcat.util.digester.CallMethodRule.end(CallMethodRule.java:476)
at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1063)
下面是web.xml配置文件

boot_crm

contextConfigLocation classpath:applicationContext.xml org.springframework.web.context.ContextLoaderListenerencoding org.springframework.web.filter.CharacterEncodingFilter encoding UTF-8encoding *.action crm org.springframework.web.servlet.DispatcherServlet contextConfigLocation classpath:springmvc-config.xml 1 crm *.action

<welcome-file-list>

<welcome-file>index.jsp</welcome-file> 

web.xml中servlet配置出错了。