Errors occurred during thebuild.

Errors running builder ‘Maven Project Builder‘ on project‘ebus.transaction‘.

org/codehaus/plexus/archiver/jar/JarArchiver

两种方式参考：

第一种：在pom.xml文件里的maven-compiler-plugin插件里指定版本号

<plugins>  
        <plugin>  
            <artifactId>maven-compiler-plugin</artifactId>  
            <version>2.3.2</version>  
            <configuration>  
                <source>1.6</source>  
                <target>1.6</target>  
                <encoding>UTF-8</encoding>  
            </configuration>  
        </plugin>  
    </plugins>

（1）关闭eclipse

（2）将\.m2\repository\org\codehaus\plexus\plexus-archiver删掉只剩最新版本

（3）重启就可以了

eclipse中的maven web项目报错：org/codehaus/plexus/archiver/jar/JarArchiver