linux搭建spark源码环境，执行build/sdt gen-idea要twitter东西？

我linux不会啊。。。。

[error] Server access Error: 连接超时 url=http://maven.twttr.com/org/mortbay/jetty/jetty-parent/10/jetty-parent-10.jar
[info] Resolving org.apache.hadoop#hadoop-project;2.2.0 ...
[error] Server access Error: 连接超时 url=http://maven.twttr.com/org/apache/hadoop/hadoop-mapreduce-client/2.2.0/hadoop-mapreduce-client-2.2.0.jar
[info] Resolving org.apache.hadoop#hadoop-project;2.2.0 ...
[error] Server access Error: 连接超时 url=http://maven.twttr.com/org/apache/hadoop/hadoop-yarn/2.2.0/hadoop-yarn-2.2.0.jar
[info] Resolving org.sonatype.forge#forge-parent;6 ...
[error] Server access Error: 连接超时 url=http://maven.twttr.com/org/sonatype/forge/forge-parent/6/forge-parent-6.jar