无法计算生成计划：Plugin org.apache.maven.plugins：maven-resources-plugin:2.5或其依赖项之一无法解析

Question

org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:129)
    at org.eclipse.m2e.core.internal.project.registry.EclipsePluginDependenciesResolver.resolve(EclipsePluginDependenciesResolver.java:48)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:142)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getMojoDescriptor(DefaultMavenPluginManager.java:261)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getMojoDescriptor(DefaultBuildPluginManager.java:185)
    at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.setupMojoExecution(DefaultLifecycleExecutionPlanCalculator.java:152)
    at org.eclipse.m2e.core.internal.embedder.MavenImpl.setupMojoExecution(MavenImpl.java:386)
    at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.setupMojoExecution(ProjectRegistryManager.java:865)
    at org.eclipse.m2e.core.internal.project.registry.MavenProjectFacade.getMojoExecution(MavenProjectFacade.java:355)
    at org.eclipse.m2e.core.project.configurator.AbstractCustomizableLifecycleMapping.getBuildParticipants(AbstractCustomizableLifecycleMapping.java:66)
    at org.eclipse.m2e.core.project.configurator.AbstractLifecycleMapping.configure(AbstractLifecycleMapping.java:87)
    at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:414)
    at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:351)
    at org.eclipse.m2e.core.ui.internal.UpdateMavenProjectJob.runInWorkspace(UpdateMavenProjectJob.java:74)
    at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.sonatype.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:296)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:186)
    at org.sonatype.aether.impl.internal.DefaultRepositorySystem.readArtifactDescriptor(DefaultRepositorySystem.java:279)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:115)

我读过很多人可以通过以下方法解决这个问题：

>

从本地存储库中删除文件夹并让其重新下载（这不起作用）

通过配置eclipse以您的maven安装为目标，而不是像这里描述的嵌入式安装（这不起作用）

无法计算生成计划：工件org.apache.maven.plugins：maven-resources-plugin:pom:2.4.3在本地存储库中不可用

我是Maven的新手，所以请原谅我的无知。

仔细观察之后，我确实注意到它没有将.jar文件下载到本地存储库中。我不确定这是不是很明显...

我没有将Maven依赖项添加到构建路径的选项。

Answer 1

我也有同样的问题。

[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5: Failure to find org.apache.maven.plugins:maven-resources-plugin:pom:2.5 in http://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 -> [Help 1]
...

安装了maven 3.0.5、eclipse Kepler和JBoss Dev Studio7。位于内部网络上的计算机，具有到html" target="_blank">Internet的代理。我是这么做的。

0.检查maven Repository服务器是否已启动

<proxy>
  <id>optional</id>
  <active>true</active>
  <protocol>http</protocol>
  <username>optional-proxyuser</username>
  <password>optional-proxypass</password>
  <host>proxy.host.net</host>
  <port>80</port>
  <nonProxyHosts>local.net|some.host.com</nonProxyHosts>
</proxy>

telnet [proxy] [port number]

2.检查not Eclipse问题

在eclipse之外的命令行级别运行了'mvn compile'-同样的问题。

如果'mvn compile'有效。但是在eclipse中使用maven插件不起作用，请参见maven插件不使用eclipse的代理设置

  <build>
        <pluginManagement>
          <plugins>
            <plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>2.7</version>
            </plugin>           
          </plugins>
        </pluginManagement>   
    </build>

手动安装缺少的插件：我访问了http://mvnrepository.com/artifact/org.apache.maven.plugins/maven-resources-plugin/2.5并下载了maven-resources-plugin-2.5.jar和maven-resources-plugin-2.5.pom。将其直接复制到maven存储库的正确文件夹(~/.m2/repository/org/apache/maven/plugins/maven-resources-plugin/2.5)中，然后重新运行'mvncompile'。这就解决了问题。

编辑1

在此之后，我又遇到了“mvn install”的两个问题：

The POM for org.apache.maven.plugins:maven-surefire-plugin:jar:2.10 is missing, no dependency information available

The POM for org.apache.maven.plugins:maven-install-plugin:jar:2.3.1 is missing, no dependency information available

我以与上面相同的方式处理这个问题，从http://mvnrepository.com/artifact/org.apache.maven.plugins/maven-surefire-plugin/2.10和http://mvnrepository.com/artifact/org.apache.maven.plugins/maven-install-plugin/2.3.1下载