maven - 'parent.relativePath' 指向我的 com.mycompany :MyProject instead of org. apache :apache - Why?

Question

事实是，Solr 项目目录位于 MyProject 父目录内(但两者之间没有模块或任何 Maven 关系，只是 FS 方便)。我必须把它拿出来吗？

$ mvn -DskipTests clean install
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.apache.lucene:lucene-solr-grandparent:pom:3.1-SNAPSHOT
[WARNING] 'parent.relativePath' points at com.mycompany:MyProject instead of org.apache:apache, please verify your project structure @ line 23, column 11
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 

来自pom.xml:

<parent>
    <groupId>org.apache</groupId>
    <artifactId>apache</artifactId>
    <version>8</version>
  </parent>

$ pwd
/Users/simpatico/ws/MyProjectBaseDir/solr

Answer 1

添加一个空 <relativePath>至<parent>以便它解析存储库中的父 pom。

  <parent>
    <groupId>org.apache</groupId>
    <artifactId>apache</artifactId>
    <version>8</version>
    <relativePath></relativePath>
  </parent>

这是相关的doc .

This feature is only for enhancing the development in a local checkout of that project. Set the value to an empty string in case you want to disable the feature and always resolve the parent POM from the repositories.
Default value is: ../pom.xml.