我用 Sonar Qube - 4.4.1 JDK版本1.7 Sonar Ant任务版本：2.1 - 我能够成功启动我的声纳服务器，当我尝试使用ant执行我的build.xml时，我“得到以下错误 - 有人可以帮助请：
sonar:
[sonar:sonar] Apache Ant(TM) version 1.9.6 compiled on June 29 2015
[sonar:sonar] Sonar Ant Task version: 2.1
[sonar:sonar] Loaded from: file:/D:/NEW_SONARQUBE_HOME/sonar-ant-task- 2.1.jar
[sonar:sonar] INFO: Default locale: "en_GB", source code encoding: "UTF-8"
[sonar:sonar] INFO: Work directory: D:\ATG9.1\DWInt\CoreCommerce\.sonar
[sonar:sonar] INFO: Sonar Server 4.4.1
BUILD FAILED
D:\NEW_SONARQUBE_HOME\buildCoreCommerce.xml:28: java.lang.IllegalStateException:
Fail to download libraries from server
at org.sonar.runner.impl.Jars35.dowloadFiles(Jars35.java:79)
at org.sonar.runner.impl.Jars35.download(Jars35.java:58)
at org.sonar.runner.impl.JarDownloader.download35(JarDownloader.java:56)
at org.sonar.runner.impl.JarDownloader.download(JarDownloader.java:40)
at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:59)
at java.security.AccessController.doPrivileged(Native Method)
at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:57)
at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50)
at org.sonar.runner.api.EmbeddedRunner.doExecute(EmbeddedRunner.java:71)