maven项目pom.xml报错

[独孤承恩]

cvc-complex-type.2.4.a: Invalid content was found starting with element 'span'. One of '{"http://maven.apache.org/POM/4.0.0":groupId, "http://maven.apache.org/POM/4.0.0":artifactId, "http://maven.apache.org/POM/4.0.0":version, "http://
maven.apache.org/POM/4.0.0":type, "http://maven.apache.org/POM/4.0.0":classifier, "http://maven.apache.org/POM/4.0.0":scope, "http://maven.apache.org/POM/4.0.0":systemPath, "http://maven.apache.org/POM/4.0.0":exclusions, "http://
maven.apache.org/POM/4.0.0":optional}' is expected.
这是开头

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

这是报错的地方

<!-- 定时器 -->
		 <dependency>
	         <span style="white-space:pre"></span>
	         <groupId>org.quartz-scheduler</groupId>  
             <artifactId>quartz</artifactId>  
             <version>1.8.6</version>  
         </dependency>

[tianfang]

<span style="white-space:pre"></span> 去掉这个就是了