build - 找不到工件的不可解析父 POM 和 'parent.relativePath' 点在错误的本地 POM

Question

我是 Maven 新手。

我有一个项目，我尝试使用 maven3 构建。

当我运行命令 mvn -X clean install 时出现错误。

[root@localhost]# mvn -X clean install
Apache Maven 3.0.4 (r1232337; 2012-01-17 14:14:56+0530)
Maven home: /usr/local/maven
Java version: 1.6.0_24, vendor: Sun Microsystems Inc.
Java home: /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-279.9.1.el6.x86_64", arch: "amd64", family: "unix"
[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from /usr/local/maven/conf/settings.xml
[DEBUG] Reading user settings from /root/.m2/settings.xml
[DEBUG] Using local repository at /root/.m2/repository
[DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10 for /root/.m2/repository
[INFO] Scanning for projects...
[DEBUG] Could not find metadata com.test.ctrl:ctrl-build:0.0.17-SNAPSHOT/maven-metadata.xml in local (/root/.m2/repository)
[ERROR] The build could not read 1 project -> [Help 1]
org.apache.maven.project.ProjectBuildingException: Some problems were encountered while processing the POMs:
[FATAL] Non-resolvable parent POM for org.openstack:openstack-rhel-rpms:2012.1-SNAPSHOT: Could not find artifact com.test.ctrl:ctrl-build:pom:0.0.17-SNAPSHOT and 'parent.relativePath' points at wrong local POM @ org.openstack:openstack-rhel-rpms:2012.1-SNAPSHOT, /root/test/devenv/openstack-rhel/pom.xml, line 8, column 13

        at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:363)
        at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:636)
        at org.apache.maven.DefaultMaven.getProjectsForMavenReactor(DefaultMaven.java:585)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:234)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
[ERROR]
[ERROR]   The project org.openstack:my-tar:2012.1-SNAPSHOT (/root/test/devenv/mytar/pom.xml) has 1 error
[ERROR]     Non-resolvable parent POM for org.openstack:openstack-rhel-rpms:2012.1-SNAPSHOT: Could not find artifact com.test.ctrl:ctrl-build:pom:0.0.17-SNAPSHOT and 'parent.relativePath' points at wrong local POM @ org.openstack:openstack-rhel-rpms:2012.1-SNAPSHOT, /root/test/devenv/openstack-rhel/pom.xml, line 8, column 13 -> [Help 2]
org.apache.maven.model.resolution.UnresolvableModelException: Could not find artifact com.test.ctrl:ctrl-build:pom:0.0.17-SNAPSHOT
        at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:159)
        at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultModelBuilder.java:813)
        at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:664)
        at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:310)
        at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:232)
        at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:410)
        at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:379)
        at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:343)
        at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:636)
        at org.apache.maven.DefaultMaven.getProjectsForMavenReactor(DefaultMaven.java:585)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:234)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: Could not find artifact com.test.ctrl:ctrl-build:pom:0.0.17-SNAPSHOT
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:538)
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:216)
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:193)
        at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:286)
        at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:155)
        ... 22 more
Caused by: org.sonatype.aether.transfer.ArtifactNotFoundException: Could not find artifact com.test.ctrl:ctrl-build:pom:0.0.17-SNAPSHOT
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:528)
        ... 26 more
[ERROR]
[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/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException

我检查了 pom.xml 但无法理解问题所在。我的 pom.xml 中的一些行如下。

  1 <?xml version="1.0"?>
  2 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
  3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  4   <modelVersion>4.0.0</modelVersion>
  5
  6 <parent>
  7     <groupId>org.openstack</groupId>
  8     <artifactId>openstack-rhel-rpms</artifactId>
  9     <version>2012.1-SNAPSHOT</version>
 10     <relativePath>../openstack-rhel</relativePath>
 11 </parent>
 12
 13     <groupId>org.openstack</groupId>
 14     <artifactId>my-tar</artifactId>
 15     <version>2012.1-SNAPSHOT</version>
 16   <packaging>pom</packaging>
 17   <name>my tar</name>
 18

我还检查了 stackoverflow 中某些问题的解决方案，例如 Non-resolvable parent POM: Could not find artifact但无法解决问题。

如果您需要与此问题相关的更多信息，请告诉我。

Answer 1

我遇到了同样的问题。在模块项目中设置父级的相对路径解决了这个问题。

使用 <relativePath>../Parent Project Name/pom.xml</relativePath>