【发布时间】：2011-07-11 06:11:02
【问题描述】：
由于某种原因，我无法让 Nexus 通过默认公共组提供我的 SNAPSHOT 工件。我已经阅读了 Nexus 手册的相关部分并搜索了谷歌，但我所做的一切似乎都不起作用。
我已经实现了第 4.2 节中的内容。 (Configuring Maven to Use a Single Nexus Group) 的手册，所以我的 settings.xml 看起来像：
<settings>
<mirrors>
<mirror>
<id>nexus</id>
<mirrorOf>*</mirrorOf>
<url>http://my-server/nexus/content/groups/public</url>
</mirror>
</mirrors>
<profiles>
<profile>
<id>nexus</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<repositories>
<repository>
<id>central</id>
<url>http://central</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>http://central</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
</settings>
一切正常，直到我开始在一台干净的机器上构建东西（即我没有构建任何 SNAPSHOT 项目的机器）并且它不会下载所需的 SNAPSHOT 依赖项。 Maven 给了我以下信息：
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building MyCo Actions Base Classes 1.0.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://my-sever/nexus/content/groups/public/com/myco/testing/1.0.0-SNAPSHOT/maven-metadata.xml
Downloading: http://my-sever/nexus/content/groups/public/com/myco/testing/1.0.0-SNAPSHOT/maven-metadata.xml
Downloading: http://my-sever/nexus/content/groups/public/com/myco/testing/1.0.0-SNAPSHOT/testing-1.0.0-SNAPSHOT.pom
[WARNING] The POM for com.myco:testing:jar:1.0.0-SNAPSHOT is missing, no dependency information available
Downloading: http://my-sever/nexus/content/groups/public/com/myco/testing/1.0.0-SNAPSHOT/testing-1.0.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.023s
[INFO] Finished at: Tue Mar 08 15:55:23 GMT 2011
[INFO] Final Memory: 99M/480M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project actions-base: Could not resolve dependencies for project com.myco:actions-base:jar:1.0.0-SNAPSHOT: Could not find artifact com.myco:testing:jar:1.0.0-SNAPSHOT in nexus (http://my-sever/nexus/content/groups/public) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
问题是 testing-1.0.0-SNAPSHOT.jar 不存在，但 testing-1.0.0-20110301.182820-1.jar 存在。如何让 Nexus 正确解决 SNAPSHOT 并为我提供我的 JAR...？
【问题讨论】：