在Ubuntu上安装CloudStack时解析buildtime依赖项时出错。

Question

[ERROR] The build could not read 1 project -> [Help 1] 
[ERROR]    
[ERROR]   The project org.apache.cloudstack:cloudstack:4.2.0 (/home/cloud/apache-cloudstack-4.2.0-src/pom.xml) has 1 error 
[ERROR]     Non-resolvable parent POM: Could not transfer artifact org.apache:apache:pom:11 from/to central (http://repo.maven.apache.org/maven2): repo.maven.apache.org: Name or service not known and 'parent.relativePath' points at wrong local POM @ line 14, column 11: Unknown host repo.maven.apache.org: Name or service not known -> [Help 2] 
[ERROR] 

Answer 1

这是一个网络问题：

生成计算机无法访问http://repo.maven.apache.org/maven2

在命令行使用wget检查您是否可以访问网站。例如。

root@mgmtserver:~/cm# wget http://repo.maven.apache.org/maven2
--2013-10-14 16:33:24--  http://repo.maven.apache.org/maven2
Resolving repo.maven.apache.org (repo.maven.apache.org)... 185.31.19.184, 185.31.19.185
Connecting to repo.maven.apache.org (repo.maven.apache.org)|185.31.19.184|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: http://central.maven.org/maven2/ [following]
--2013-10-14 16:33:24--  http://central.maven.org/maven2/
Resolving central.maven.org (central.maven.org)... 185.31.19.184, 185.31.19.185
Reusing existing connection to repo.maven.apache.org:80.
HTTP request sent, awaiting response... 200 OK
Length: 967 [text/html]
Saving to: `maven2'

100%[=====================================================>] 967         --.-K/s   in 0s

2013-10-14 16:33:24 (74.4 MB/s) - `maven2' saved [967/967]

null

Apache CloudStack的pom.xml继承了Apache Software Foundation父POM中的预定义值。因此，Maven构建首先从网络位置下载所需的POM，Maven将其本地存储在Maven存储库中，Maven存储库是一种本地缓存。

结束语：

如果你很好奇，下载的POM的来源在这里。