相关疑难解决方法(0)

我正在关注maven的教程.我有一个非常简单的项目,里面有几个模块.在模块pom上我想通过$ {parent.groupid}和$ {parent.version}来引用主要的proyect pom版本和组,所以如果我改变其中任何一个,我将不必在子poms和更改它们但我得到不可解析的父POM:无法传输工件错误

我在stackoverflow上读过几个"不可解析的父POM:"问题,但我读过的内容并没有帮助.

我的目录结构如下:

tutorial_maven(dir)
 --> pom.xml(file)
 --> tutorial_maven_jar(dir)
     --> pom.xml(file)

我收到以下错误:

Apache Maven 3.0.4 (r1232337; 2012-01-17 03:44:56-0500)
Maven home: C:\Program Files (x86)\apache-maven-3.0.4
Java version: 1.7.0_09, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk1.7.0_09\jre
Default locale: es_EC, platform encoding: UTF-8
OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from C:\Program Files (x86)\apache-maven-3.0.4\conf\settings.xml
[DEBUG] Reading user settings from C:\Users\fureta.DESARROLLO03\.m2\settings.xml
[WARNING] Command line option -npr is deprecated and will …

从命令提示符执行mvn install命令时,我遇到错误.

Plugin org.apache.maven.plugins:maven-source-plugin:1.0 or one of its dependencies could not be resolved: 
Failed to read artifact descriptor for org.apache.maven.plugins:maven-source-plugin:jar:1.0: 
Could not transfer artifact org.apache.maven.plugins:maven-source-plugin:pom:1.0 from/to central (http://repo1.maven.org/maven2): 
Error transferring file: repo1.maven.org: Unknown host repo1.maven.org -> [Help 1]

如果我尝试连接到svn存储库使用https://broadleaf.svn.sourceforge.net/svnroot/broadleaf 我得到以下错误

svn: OPTIONS request failed on '/svnroot/broadleaf/'   
Connection timed out: connect

谁能帮我？