突然Maven无法编译

Question

C:\Users\nanjiang.jx>mvn -version
    Apache Maven 2.2.1 (r801777; 2009-08-07 03:16:01+0800)
    Java version: 1.6.0_45
    Java home: D:\Program Files\Java\jdk1.6.0_45\jre
    Default locale: zh_CN, platform encoding: GBK
    OS name: "windows 7" version: "6.1" arch: "amd64" Family: "windows"
C:\Users\nanjiang.jx>java -version
    java version "1.7.0_60"
    Java(TM) SE Runtime Environment (build 1.7.0_60-b19)
    Java HotSpot(TM) 64-Bit Server VM (build 24.60-b09, mixed mode)

我使用maven在Java中开发了几天，其他人的项目可以编译。

今天，我使用一台新的PC并像上面那样设置环境。

当我键入mvn eclipse：eclipse时，下载了jar，但它没有追加到.classpath中。

c:\idlecenter>call mvn clean eclipse:eclipse -DdownloadSources=tru
    e
    [INFO] Scanning for projects...
    [INFO] Reactor build order:
    [INFO]   idlecenter-all
    [INFO]   idlecenter-client
    [INFO]   idlecenter-dal
    [INFO]   idlecenter-server
    [INFO] Searching repository for plugin with prefix: 'eclipse'.
    [INFO] ------------------------------------------------------------------------
    [INFO] Building idlecenter-all
    [INFO]    task-segment: [clean, eclipse:eclipse]
    [INFO] ------------------------------------------------------------------------
    [INFO] [clean:clean {execution: default-clean}]
    [INFO] Preparing eclipse:eclipse
    [INFO] No goals needed for project - skipping
    [INFO] [eclipse:eclipse {execution: default-cli}]
    [INFO] Not running eclipse plugin goal for pom project
    [INFO] Using Eclipse Workspace: null
    [INFO] Adding default classpath container: org.eclipse.jdt.launching.JRE_CONTAIN
    ER
    [INFO] ------------------------------------------------------------------------
    [INFO] Building idlecenter-client
    [INFO]    task-segment: [clean, eclipse:eclipse]
    [INFO] ------------------------------------------------------------------------
    [INFO] [clean:clean {execution: default-clean}]
    [INFO] Deleting directory I:\idlecenter\idlecenter-client\target
    [INFO] Preparing eclipse:eclipse
    [INFO] No goals needed for project - skipping
    [INFO] [eclipse:eclipse {execution: default-cli}]
    [INFO] Using Eclipse Workspace: null
    [INFO] Adding default classpath container: org.eclipse.jdt.launching.JRE_CONTAIN
    ER
    [ERROR] An error occurred during dependency resolution of the following artifact
    :
        com.ning:compress-lzf:0.6.0
    Caused by: Unable to get dependency information: Unable to read the metadata fil
    e for artifact 'com.ning:compress-lzf:jar': Cannot find parent: org.sonatype.oss
    :oss-parent for project: com.ning:compress-lzf:bundle:0.6.0 for project com.ning
    :compress-lzf:bundle:0.6.0
      com.ning:compress-lzf:jar:0.6.0

Answer 1

好吧....父POM（'org.sonatype.oss：oss-parent：2'）存在于主Maven仓库中。 因此，下载时可能会出现暂时性问题。

查看您本地的Maven仓库（例如“〜/ .m2 / repository / ...”），以查看父POM是否存在，并检查Maven是否下载了损坏的副本。 （该POM文件的外观与您在此页面上看到的相同吗？

如果它已损坏，则可以尝试删除“ ... / org.sonatype.oss / ...”子树，然后再次运行Maven。 如果仍然看到Maven故障，则可能需要检查如何配置上游存储库详细信息，等等。