Does no one know what could cause a "Failed to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata." error? Or under what conditions such an error would be generated? Maybe a hunch?
Any help you could provide would be ... umm ... helpful. -- Daniel Siegmann FJA-US, Inc. 512 Seventh Ave., New York, NY 10018 (212) 840-2618 ext. 139 -----Original Message----- From: Siegmann Daniel, NY Sent: Monday, February 12, 2007 5:32 PM To: 'Maven Users List' Subject: [M2] Error getting POM - Failed to resolve artifact Several people at my location have suddenly begun having build failures whenever an Apache plugin snapshot needs to be downloaded to their local repository. This includes key plugins such as org.apache.maven.plugins:maven-resources-plugin. When I removed the plugin from my local repository I encountered the same error: >>>>> Project ID: org.apache.maven.plugins:maven-resources-plugin Reason: Error getting POM for 'org.apache.maven.plugins:maven-resources-plugin' from the repository: Failed to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) <<<<< We have an installation of maven-proxy set as a mirror of central, codehaus, and apache.snapshots. This has worked fine in the past, and the artifact was already present on the proxy (having been downloaded successfully in the past). I tried removing the artifact from the proxy. Maven attempted to fetch the artifact from the proxy, and the proxy logs show it was downloaded from people.apache.org and cached successfully. But Maven still complains. Any ideas what could be causing this? It's a rather serious problem, since it blocks all use of Maven when it crops up. :( We're using Sun JDK 1.4.2_05 and Maven 2.0.4 (and have been for some time). I have included a full trace below, though I didn't not see any information of use: + Error stacktraces are turned on. Maven version: 2.0.4 [DEBUG] Building Maven user-level plugin registry from: 'D:\Profiles\SIE01876\.m2\plugin-registry.xml' [DEBUG] Building Maven global-level plugin registry from: 'd:\projects\tools\maven\2.0.4\conf\plugin-registry.xml' [INFO] Scanning for projects... [DEBUG] com.fja.pm:productmachine:jar:4.00_059 (selected for null) [DEBUG] Retrieving parent-POM: org.apache.maven.wagon:wagon-providers::1.0-beta-2 for project: null:wagon-ftp:jar:1.0-beta-2 from the repository. [DEBUG] Retrieving parent-POM: org.apache.maven.wagon:wagon::1.0-beta-2 for project: null:wagon-providers:pom:null from the repository. [DEBUG] Retrieving parent-POM: org.apache.maven:maven-parent::4 for project: org.apache.maven.wagon:wagon:pom:1.0-beta-2 from the repository. [DEBUG] Retrieving parent-POM: org.apache:apache::3 for project: org.apache.maven:maven-parent:pom:4 from the repository. [DEBUG] org.apache.maven.wagon:wagon-ftp:jar:1.0-beta-2:runtime (selected for runtime) [DEBUG] commons-net:commons-net:jar:1.4.1:runtime (selected for runtime) [DEBUG] oro:oro:jar:2.0.8:runtime (selected for runtime) [DEBUG] Retrieving parent-POM: org.apache.maven.wagon:wagon::1.0-beta-2 for project: null:wagon-provider-api:jar:1.0-beta-2 from the repository. [DEBUG] Retrieving parent-POM: org.apache.maven:maven-parent::4 for project: org.apache.maven.wagon:wagon:pom:1.0-beta-2 from the repository. [DEBUG] Retrieving parent-POM: org.apache:apache::3 for project: org.apache.maven:maven-parent:pom:4 from the repository. [DEBUG] org.apache.maven.wagon:wagon-provider-api:jar:1.0-beta-2:runtime (selected for runtime) [DEBUG] org.codehaus.plexus:plexus-utils:jar:1.0.4:runtime (selected for runtime) [INFO] ---------------------------------------------------------------------------- [INFO] Building Product Machine [INFO] task-segment: [test] [INFO] ---------------------------------------------------------------------------- [DEBUG] maven-resources-plugin: resolved to version 2.3-SNAPSHOT from repository central [DEBUG] Skipping disabled repository central [DEBUG] maven-resources-plugin: using locally installed snapshot [DEBUG] Skipping disabled repository central [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Error building POM (may not be this project's POM). Project ID: org.apache.maven.plugins:maven-resources-plugin Reason: Error getting POM for 'org.apache.maven.plugins:maven-resources-plugin' from the repository: Failed to resolve artifact, possibly due to a repository li st that is not appropriately equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) [INFO] ------------------------------------------------------------------------ [DEBUG] Trace org.apache.maven.lifecycle.LifecycleExecutionException: Error resolving version for 'org.apache.maven.plugins:maven-resources-plugin': Unable to read the metada ta file for artifact 'org.apache.maven.plugins:maven-resources-plugin:pom': Error getting POM for 'org.apache.maven.plugins:maven-resources-plugin' from the rep ository: Failed to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLife cycleExecutor.java:1261) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getMojoDescriptor(Defaul tLifecycleExecutor.java:1517) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.bindLifecycleForPackagin g(DefaultLifecycleExecutor.java:1011) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.constructLifecycleMappin gs(DefaultLifecycleExecutor.java:975) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifec ycleExecutor.java:453) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFail ures(DefaultLifecycleExecutor.java:306) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(Defa ultLifecycleExecutor.java:273) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycle Executor.java:140) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115) at org.apache.maven.cli.MavenCli.main(MavenCli.java:256) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: org.apache.maven.plugin.version.PluginVersionResolutionException: Error resolving version for 'org.apache.maven.plugins:maven-resources-plugin': Unab le to read the metadata file for artifact 'org.apache.maven.plugins:maven-resources-plugin:pom': Error getting POM for 'org.apache.maven.plugins:maven-resources -plugin' from the repository: Failed to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolveMetaVersi on(DefaultPluginVersionManager.java:678) at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolvePluginVer sion(DefaultPluginVersionManager.java:183) at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolvePluginVer sion(DefaultPluginVersionManager.java:87) at org.apache.maven.plugin.DefaultPluginManager.verifyPlugin(DefaultPluginManag er.java:158) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLife cycleExecutor.java:1252) ... 18 more Caused by: org.apache.maven.artifact.metadata.ArtifactMetadataRetrievalException: Unable to read the metadata file for artifact 'org.apache.maven.plugins:maven- resources-plugin:pom': Error getting POM for 'org.apache.maven.plugins:maven-resources-plugin' from the repository: Failed to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) at org.apache.maven.project.artifact.MavenMetadataSource.retrieve(MavenMetadata Source.java:131) at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolveMetaVersi on(DefaultPluginVersionManager.java:669) ... 22 more Caused by: org.apache.maven.project.ProjectBuildingException: Error getting POM for 'org.apache.maven.plugins:maven-resources-plugin' from the repository: Faile d to resolve artifact, possibly due to a repository list that is not appropriately equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository( DefaultMavenProjectBuilder.java:501) at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromRepository(Defa ultMavenProjectBuilder.java:225) at org.apache.maven.project.artifact.MavenMetadataSource.retrieve(MavenMetadata Source.java:102) ... 23 more Caused by: org.apache.maven.artifact.resolver.ArtifactResolutionException: Failed to resolve artifact, possibly due to a repository list that is not appropriate ly equipped for this artifact's metadata. org.apache.maven.plugins:maven-resources-plugin:pom:2.3-SNAPSHOT from the specified remote repositories: central (http://repo1.maven.org/maven2) at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultAr tifactResolver.java:129) at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultAr tifactResolver.java:63) at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository( DefaultMavenProjectBuilder.java:467) ... 25 more [INFO] ------------------------------------------------------------------------ [INFO] Total time: < 1 second [INFO] Finished at: Mon Feb 12 17:29:54 EST 2007 [INFO] Final Memory: 1M/3M [INFO] ------------------------------------------------------------------------ Thanks, -- Daniel Siegmann FJA-US, Inc. 512 Seventh Ave., New York, NY 10018 (212) 840-2618 ext. 139 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL 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