Non-resolvable parent POM for Could not find artifact and 'parent.relativePath' points at wrong local POM

问题:

I am new to maven.

I have one project which I try to build with the maven3.

When I run the command mvn -X clean install I got the error.

[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 

I check the pom.xml but cant understand what was the problem. Some lines from my pom.xml is as below.

  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 

I also check the solution on some question in stackoverflow like Non-resolvable parent POM: Could not find artifact but couldnt help to solve the problem.

If you need more information related to this question, let me know.

回答1:

You need to have the file /root/test/devenv/openstack-rhel/pom.xml

This file need to have the followings elements:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">     <modelVersion>4.0.0</modelVersion>     <groupId>org.openstack</groupId>     <artifactId>openstack-rhel-rpms</artifactId>     <version>2012.1-SNAPSHOT</version>     <packaging>pom</packaging> </project> 

回答2:

I faced the same issue. Setting relative path of the parent in module projects solved the issue.

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

回答3:

We had the same issue.

The parent pom file was available in our local repository, but maven still unsuccessfully tried to download it from the central repository, or from the relativePath (there were no files in the relative path).

Turns out, there was a file called "_remote.repositories" in the local repository, which was causing this behavior. After deleting all the files with this name from the complete local repository, we could build our modules.

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