尝试执行

mvn -U clean

或者在eclipse中运行> Maven Clean和Maven >更新项目上下文菜单中的快照

尝试执行

mvn -U clean

或者在eclipse中运行> Maven Clean和Maven >更新项目上下文菜单中的快照

在我的例子中，我在spring工具4中得到了这个错误消息

ArtifactTransferException: org.codehaus.plexus:plexus-interpolation:jar:1.26 failed to transfer from https://repo.maven.apache.org/maven2 during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.codehaus.plexus:plexus-interpolation:jar:1.26 from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org java.lang.reflect.InvocationTargetException

这是解决方案

步骤01 -首先关闭弹簧工具应用程序

步骤02 -进入路径C:\Users\User并删除。m2文件夹

步骤03 -现在去包探索和选择你的项目

第04步-现在右键单击您的项目，进入Maven，单击更新项目

如何卸载Spring Tool 4

步骤01 -单击帮助并转到关于Spring工具套件4

步骤02 -现在点击安装细节

步骤03 -在里面，你可以看到所有已安装的软件，只需按Ctrl + A选择所有，然后单击卸载

这在Windows中也适用。

Locate the {user}/.m2/repository (Using Juno /Win7 here) In the Search field in upper right of window, type ".lastupdated". Windows will look through all subfolders for these files in the directory. (I did not look through cache.) Remove them by Right-click > Delete (I kept all of the lastupdated.properties). Then go back into Eclipse, Right-click on the project and select Maven > Update Project. I selected to "Force Update of Snapshots/Releases". Click Ok and the dependencies finally resolved correctly.

在Eclipse中: 右键单击项目->Maven->更新项目->选中“快照/版本强制更新”复选框。单击OK。

当我在防火墙后面时，它发生在我身上。在Eclipse IDE中运行时，有时不会下载依赖项。确保使用mvn clean install -U来解决这个问题。在此之后，您将看到依赖项下载。