无法安装wikidata-query-rdf / Blazegraph

Question

我正在尝试安装wikidata-query-rdf (https://github.com/wikimedia/wikidata-query-rdf)，Blazegraph出现故障：

git clone https://gerrit.wikimedia.org/r/wikidata/query/rdf wikidata-query-rdf
cd wikidata-query-rdf
sudo mvn install

我首先收到这样的警告:警告com.blazegraph:bigdata-cache:jar:2.1.5-SNAPSHOT的POM丢失，没有可用的依赖项信息。

然后：

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] parent ............................................. SUCCESS [  6.246 s]
[INFO] Shared code ........................................ SUCCESS [ 19.727 s]
[INFO] Wikidata Query RDF Testing Tools ................... SUCCESS [  9.955 s]
[INFO] Blazegraph extension to improve performance for Wikibase FAILURE [ 16.945 s]
[INFO] Blazegraph Service Package ......................... SKIPPED
[INFO] Wikidata Query RDF Tools ........................... SKIPPED
[INFO] Wikibase RDF Query Service ......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 54.513 s
[INFO] Finished at: 2017-12-19T10:58:12+00:00
[INFO] Final Memory: 58M/420M
[INFO] ------------------------------------------------------------------------


[ERROR] Failed to execute goal on project blazegraph: Could not resolve dependencies for project org.wikidata.query.rdf:blazegraph:jar:0.3.0-SNAPSHOT: The following artifacts could not be resolved: com.blazegraph:bigdata-cache:jar:2.1.5-SNAPSHOT, com.blazegraph:bigdata-client:jar:2.1.5-SNAPSHOT, com.blazegraph:bigdata-common-util:jar:2.1.5-SNAPSHOT, com.blazegraph:bigdata-core:jar:2.1.5-SNAPSHOT, com.blazegraph:bigdata-util:jar:2.1.5-SNAPSHOT, com.blazegraph:ctc-striterators:jar:2.1.5-SNAPSHOT: Could not find artifact com.blazegraph:bigdata-cache:jar:2.1.5-SNAPSHOT in wmf.mirrored (http://archiva.wikimedia.org/repository/mirrored)

Answer 1

Maven无法找到某些依赖项。您可以看到，它在一个只发布但没有快照的存储库中进行查找。

您应该将快照存储库添加到父pom.xml文件中：

<repositories>
       ....
  <repository>
            <id>wmf.snapshots</id>
            <url>https://archiva.wikimedia.org/repository/snapshots</url>
  </repository>
</repositories>

或者，将Blazegraph依赖项版本属性更改为最新发布版本：

<properties>
        <blazegraph.version>2.1.4</blazegraph.version>
        ...
</properties>