jasperserver-ireport-plugin Artifact的Maven依赖解析异常

Question

我一直在尝试构建 JasperReports 服务器java-webapp-sample并执行以下步骤：

1. cd / jasperserver / buildomatic /
2. 成功构建了jasper源。
3. 构建java-webapp-sample执行./js-ant build-sample-ws-app-ce并陷入依赖冲突。这是日志： -

build-sample-ws-app-ce：

 [echo] remoteDebugArg: ${remoteDebugArg}
 [echo] VERBOSE_LOGGING parameter set to: ${VERBOSE_LOGGING}
 [echo] MAVEN LOGGING: quiet
 [java] [ERROR] Failed to execute goal on project jasperserver-ws-sample-jar: Could not resolve dependencies for project com.jaspersoft.jasperserver:jasperserver-ws-sample-`jar:jar:5.1.0: Could not find artifact com.jaspersoft.jasperserver:jasperserver-ireport-plugin:jar:4.2.0 in js-repo-svn (file:///home/JasperWebServer/Source/jasperreports-server-cp-5.1.0-src.zip_FILES/jasperreports-server-cp-5.1.0-`src/jasperserver-repo) 

在哪里寻找 jasperserver-ireport-plugin：jar：4.2.0.jar 对我来说真的很模糊。如何解决这个冲突？