小贝子编程

Maven：不可解析的父 POM 和错误本地 POM 的'parent.relativePath'点



我正在使用maven 3运行应用程序，但我得到了以下错误：

[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: Failure to find com.topdesk:tis-parent:pom:3.
4 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced and 'parent.relativePath' points at wrong local POM @ line 3, column 11
at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:416)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:663)
    at org.apache.maven.DefaultMaven.getProjectsForMavenReactor(DefaultMaven.java:654)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:243)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR]
[ERROR]   The project com.topdesk.test.junitcategorizer:junitcategorizer:0.0.1-SNAPSHOT (D:Mastersthesis related papers and toolsjunitcategorizerpom.xml) has 1 error
[ERROR]     Non-resolvable parent POM: Failure to find com.topdesk:tis-parent:pom:3.4 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced and 'parent.relativePath' points at wrong local POM@ line 3, column 11 -> [Help 2]org.apache.maven.model.resolution.UnresolvableModelException: Failure to find com.topdesk:tis-parent:pom:3.4 in https://repo.maven.apache.org/maven2 was cachedin the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced
    at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:187)
    at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:236)
    at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultodelBuilder.java:898)
    at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:750)
    at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:309)
    at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:463)
    at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:432)
    at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:396)
    at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:663)
    at org.apache.maven.DefaultMaven.getProjectsForMavenReactor(DefaultMaven.java:654)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:243)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find com.topdesk:tis-parent:pom:3.4 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:239)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:295)
    at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:183)
    ... 22 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find com.topdesk:tis-parent:pom:3.4 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:232)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:599)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:518)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:436)
    ... 26 more

我有以下父pom文件（部分）：

<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.topdesk</groupId>
<artifactId>tis-parent</artifactId>
<version>3.4</version>
</parent>
<groupId>com.topdesk.test.junitcategorizer</groupId>
<artifactId>junitcategorizer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>JUnitCategorizer</name>
<modules>
<module>junitcategorizer.instrument</module>
<module>junitcategorizer.examples</module>
<module>junitcategorizer.reporter.maven</module>
<module>junitcategorizer.reporter.maven.site</module>
<module>junitcategorizer.cutdetection</module>
</modules>
<organization>
    <name>TOP Informatie Systemen bv</name>
    <url>http://www.topdesk.com/</url>
</organization>
<properties>
    <project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>utf-8</project.reporting.outputEncoding>
    <surefire.version>2.12</surefire.version>
</properties>
<prerequisites>
    <maven>3.0</maven>
</prerequisites>

我有以下子模块pom文件：

 <modelVersion>4.0.0</modelVersion>
 <parent>
<artifactId>junitcategorizer</artifactId>
<groupId>com.topdesk.test.junitcategorizer</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<artifactId>junitcategorizer.cutdetection</artifactId>
<name>Analysis of parameters for the CUT detection algorithm</name>
<description>Analysis of parameters for the CUT detection algorithm</description>
<dependencies>
<dependency>
    <groupId>com.topdesk.test.junitcategorizer</groupId>
    <artifactId>junitcategorizer.instrument</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>

我试着在父pom文件中注释下面的部分（我不知道这样做是否正确），然后这个错误就消失了，构建也因这个错误而失败。

<parent>
<groupId>com.topdesk</groupId>
<artifactId>tis-parent</artifactId>
<version>3.4</version>
</parent>

请帮帮我！

感谢

maven多模块项目的正常布局是：

parent
├── pom.xml
├── module
    ├── pom.xml

检查您是否使用了此布局。

另外：

  1. CCD_ 1看起来很奇怪。而不是".."

    <relativePath>..</relativePath>

    尝试'../'相反：

    <relativePath>../</relativePath>

    如果使用标准布局，也可以删除relativePath。这是我一直在做的事情，在命令行上，我可以构建父模块（以及所有模块），或者只构建一个模块。

  2. 模块路径可能错误。在父级中，您将模块定义为：

    <module>junitcategorizer.cutdetection</module>

    您必须指定子模块的文件夹名称，而不是工件标识符。如果junitcategorizer.cutdetection不是文件夹的名称，则相应地进行更改。

希望能有所帮助。。

编辑看看另一篇帖子，我在那里回答了。

我参加聚会可能有点晚了，但我在TOPdesk为我的论文项目写了junitcategorizer。早期版本确实使用了公司内部的母公司POM。因此，您的问题是由父POM无法解决引起的，因为它不可用于外部世界。

您可以：

  • 删除<parent>块，但必须自己配置Surefire、Compiler和其他插件
  • （仅适用于此特定情况！）通过设置将其更改为指向我们的开源父POM：
<parent>
    <groupId>com.topdesk</groupId>
    <artifactId>open-source-parent</artifactId>
    <version>1.2.0</version>
</parent>

java版本中存在冲突。在对maven使用1.8后解决。

您可以尝试以下方法，

 <parent>
    <groupId></groupId>
    <artifactId></artifactId>
    <version></version>
  </parent>

这样，父jar将从存储库中获取。

所以在我的情况下，在尝试了以上所有选项后，我意识到这是VPN（公司防火墙）。一旦连接并运行cmd:clean-install-spring-boot:run。问题已解决。步骤1：检查maven是否正确配置。步骤2：检查settings.xml是否正确映射。步骤3：验证你是否在任何防火墙后面，然后相应地映射你的回购网址。步骤4：运行干净安装弹簧套：运行步骤5：问题得到解决。

在Windows上使用Maven 3.8.3，我明确指定了父pom.xml（../pom.xml）的相对路径，即：

<parent>
    <groupId>org.example</groupId>
    <artifactId>example</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <relativePath>../pom.xml</relativePath>
</parent>

唯一让我失望的是那些误导性的文件。

引用Maven关于relativePath:的消息来源

检出中父pom.xml文件的相对路径。默认值为../pom.xml。[…]

现在，虽然文档指出../pom.xml应该是默认值，但用relativePath1替换<relativePath>../pom.xml</relativePath>会产生问题中报告的错误。

将以下内容添加到pom.xml将解决问题：

<pluginRepositories>
    <pluginRepository>
        <id>central</id>
        <name>Central Repository</name>
        <url>https://repo.maven.apache.org/maven2</url>
        <layout>default</layout>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
        <releases>
            <updatePolicy>never</updatePolicy>
        </releases>
    </pluginRepository>
</pluginRepositories>
<repositories>
    <repository>
        <id>central</id>
        <name>Central Repository</name>
        <url>https://repo.maven.apache.org/maven2</url>
        <layout>default</layout>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>

标签在您的机器上搜索父POM。固定步骤：

  1. 将以下文件的内容复制到本地上的文件（不要复制第1行）。https://repo1.maven.org/maven2/org/springframework/boot/spring-boot-starter-parent/2.6.9/spring-boot-starter-parent-2.6.9.pom

  2. 复制路径（在我的例子中是"C:\Users/bharat/.m2/repository_saml/org/springframework/boot/spring-boot starter-parent/2.0.4"），并将其添加到pom.xml中，如下所示。

    <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.0.4</version>
     <relativePath>C:/Users/bharat/.m2/repository_saml/org/springframework/boot/spring-boot-starter-parent/2.0.4</relativePath>
</parent>

不管怎样，这都会奏效。

删除现有的本地maven存储库将有助于消除此错误。

-->删除~/.m2/存储库

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