我正在尝试遵循docker（https://spring.io/guides/gs/spring-boot-docker/）的spring-boot教程。我想遵循本教程中的Maven构建示例。我正在使用Maven（M2Eclipse）随附的Eclipse Oxygen，并且还在我的计算机上安装了Apache Maven 3.5.3。
我跑步后
mvn install dockerfile:build
从命令行中，我切换回eclipse并在pom文件中看到错误。
为什么会这样呢？有什么办法可以解决？
在查看pom文件时在eclipse中显示的错误消息：
Unable to find/resolve artifact. (org.apache.maven.plugins:maven-dependency-plugin:3.0.2:unpack:unpack:package)
org.apache.maven.plugin.MojoExecutionException: Unable to find/resolve artifact.
at org.apache.maven.plugins.dependency.fromConfiguration.AbstractFromConfigurationMojo.getArtifact(AbstractFromConfigurationMojo.java:252)
at org.apache.maven.plugins.dependency.fromConfiguration.AbstractFromConfigurationMojo.getProcessedArtifactItems(AbstractFromConfigurationMojo.java:168)
at org.apache.maven.plugins.dependency.fromConfiguration.UnpackMojo.getProcessedArtifactItems(UnpackMojo.java:147)
at org.apache.maven.plugins.dependency.fromConfiguration.UnpackMojo.doExecute(UnpackMojo.java:103)
at org.apache.maven.plugins.dependency.AbstractDependencyMojo.execute(AbstractDependencyMojo.java:144)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:331)
at org.eclipse.m2e.core.internal.embedder.MavenImpl$11.call(MavenImpl.java:1362)
at org.eclipse.m2e.core.internal.embedder.MavenImpl$11.call(MavenImpl.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1360)
at org.eclipse.m2e.core.project.configurator.MojoExecutionBuildParticipant.build(MojoExecutionBuildParticipant.java:52)
at com.ianbrandt.tools.m2e.mdp.core.MdpBuildParticipant.executeMojo(MdpBuildParticipant.java:133)
at com.ianbrandt.tools.m2e.mdp.core.MdpBuildParticipant.build(MdpBuildParticipant.java:67)
at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:137)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:172)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:1)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1$1.call(MavenBuilder.java:115)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:105)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:735)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:301)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:304)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:360)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:383)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:142)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:232)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
Caused by: org.apache.maven.shared.artifact.resolve.ArtifactResolverException: Failure to find org.springframework:gs-spring-boot-docker:jar:0.1.0 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
at org.apache.maven.shared.artifact.resolve.internal.Maven31ArtifactResolver.resolveArtifact(Maven31ArtifactResolver.java:116)
at org.apache.maven.shared.artifact.resolve.internal.Maven31ArtifactResolver.resolveArtifact(Maven31ArtifactResolver.java:80)
at org.apache.maven.shared.artifact.resolve.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:73)
at org.apache.maven.plugins.dependency.fromConfiguration.AbstractFromConfigurationMojo.getArtifact(AbstractFromConfigurationMojo.java:248)
... 38 more
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.springframework:gs-spring-boot-docker:jar:0.1.0 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
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:294)
at org.apache.maven.shared.artifact.resolve.internal.Maven31ArtifactResolver.resolveArtifact(Maven31ArtifactResolver.java:108)
... 41 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find org.springframework:gs-spring-boot-docker:jar:0.1.0 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
at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:231)
at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:585)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:503)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
... 45 more