无法读取org.springframework的工件描述符：spring-core：jar

Question

我正在尝试将maven依赖项下载到我的netbeans build maven Web应用程序。 ince我无法通过IDE更新依赖关系我尝试使用

mvn clean install 

命令槽cmd。
但我仍然有同样的错误。

请帮忙。我试图解决这个问题好几天了。 （互联网连接工作得很好。）
谢谢你

修改
这是输出。

C:\Users\Dilini\Documents\NetBeansProjects\NewSpring>mvn clean install
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building NewSpring 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.springframework:spring-core:jar:5.0.0.RC3 is missing, no dependency information available
[WARNING] The POM for org.springframework:spring-beans:jar:5.0.0.RC3 is missing, no dependency information available
[WARNING] The POM for org.springframework:spring-context:jar:5.0.0.RC3 is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.552 s
[INFO] Finished at: 2017-08-24T15:24:58+05:30
[INFO] Final Memory: 8M/155M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project NewSpring: Could not resolve dependencies for project com.dilini:NewSpring:war:1.0-SNAPSHOT: The following artifacts could not be resolved: org.springframework:spring-core:jar:5.0.0.RC3, org.springframework:spring-beans:jar:5.0.0.RC3, org.springframework:spring-context:jar:5.0.0.RC3: Failure to find org.springframework:spring-core:jar:5.0.0.RC3 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 -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[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/DependencyResolutionException

C:\Users\Dilini\Documents\NetBeansProjects\NewSpring>

Answer 1

您需要将此repo添加到您的pom文件中：

<repositories>
  <repository>
    <id>repository.spring.milestone</id>
    <name>Spring Milestone Repository</name>
    <url>http://repo.spring.io/milestone</url>
  </repository>
</repositories>