谢谢你的回复，但经过更多的搜索，我能够解决这个问题。结果我不得不删除其中一个“*”。lastUpdated”，这是阻止我的一个插件(Maven Surefire插件)更新。我是手动清理的，因为清洁专家显然不会这么做。

问题是“*”。一个插件的lastUpdated文件阻止了maven检查更新，并且不允许下载必要的jar文件。

这对我来说在Windows上很管用:

找到{user}/.m2/存储库 在窗口右上方的搜索栏中，输入“.lastupdated”。Windows将在该目录下的所有子文件夹中查找这些文件。 删除所有的.lastupdated文件。 回到Eclipse，右键单击项目并选择Maven > Update project。 选择“强制更新快照/版本”。 单击Ok，依赖项最终将正确解析。

这件事也发生在我身上，对此你可能有两种解决办法

If your project consist of some external or project specificdependency in it then you have to manually add it to your M2 repo folder which is located at C:\Users\Mohit.Singh.m2\repository folder and then you have to run mvn eclipse:eclipse and then mvn clean install from the project folder if you do not have any wxternal or project sppecific dependency then you may import the project into eclipse as Existing maven project then right click on project --> GO to maven --> Click on update project a window will appear check the force snapshot download option and hit on OK

您可以删除.m2文件夹本身，并强制MyEclipse在启动时重新下载所有依赖项。进入Window > Preferences > MyEclipse > Maven4MyEclipse。

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.

只需删除maven本地存储库中的原型。如上所述，它发生在原型下载失败的情况下。