mvn clean命令错误

Question

我是新的maven，经过几年的编程，主要是在Ruby和JS中，我回到了Java。

我刚开始玩的Maven的，而当我运行mvn clean我得到以下错误（我在OS X上的El-匹10.11.6运行此）：

[INFO] Scanning for projects... 
[ERROR] 
[ERROR] Some problems were encountered while processing the POMs: 
[ERROR] 'dependencies.dependency.artifactId' for commons-lang:>commons-lang:jar with value '>commons-lang' does not match a valid id pattern. @ line 15, column 25 @ 
[ERROR] The build could not read 1 project -> [Help 1] 
[ERROR] 
[ERROR] The project com.chen:HelloWorld:0.0.1-SNAPSHOT (/Users/chenn/Development/HelloWorld/pom.xml) has 1 error 
[ERROR] 'dependencies.dependency.artifactId' for commons-lang:>commons-lang:jar with value '>commons-lang' does not match a valid id pattern. @ line 15, column 25 
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. 
[ERROR] Re-run Maven using the -X switch to enable full debug logging. 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles: 
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException 

的POM文件：

<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"> 

    <groupId>com.chen</groupId> 
    <artifactId>HelloWorld</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <modelVersion>4.0.0</modelVersion> 
    <packaging>jar</packaging> 

    <dependencies> 
     <dependency> 
      <groupId>commons-lang</groupId> 
      <artifactId>>commons-lang</artifactId> 
      <version>2.6</version> 
     </dependency> 
    </dependencies> 
</project> 

我一直在努力寻找答案，但在路上挣扎。

Answer 1

<artifactId>**>**commons-lang</artifactId>你有一个>太多在这条线

Answer 2

额外>在artifactId导致您的问题。