Maven Build Failure - failure to find plugins

Question

I have created a project using the m2 eclipse tool and selected the web application archetype now if I try to package this empty application I get a build failure saying

[ERROR] Plugin org.apache.maven.plugins:maven-war-plugin:2.1 or one of its dependencies could not be resolved: Failure to find org.apache.maven.plugins:maven-war-plugin:jar:2.1 in http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update in
terval of central has elapsed or updates are forced -> [Help 1]
org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.plugins:maven-war-plugin:2.1 or one of its dependencies could not be resolv
ed: Failure to find org.apache.maven.plugins:maven-war-plugin:jar:2.1 in http://repo1.maven.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.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:96)
        at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:136)
        at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getMojoDescriptor(DefaultMavenPluginManager.java:251)
        at org.apache.maven.plugin.DefaultBuildPluginManager.getMojoDescriptor(DefaultBuildPluginManager.java:197)
        at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.setupMojoExections(DefaultLifecycleExecutionPlanCalculator.java
:134)
        at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan(DefaultLifecycleExecutionPlanCalculator.
java:116)
        at org.apache.maven.lifecycle.internal.BuilderCommon.resolveBuildPlan(BuilderCommon.java:92)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:314)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:132)
        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:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: Failure to find org.apache.maven.plugins:maven-war-plugin:jar:2.1 in http://rep
o1.maven.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.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:488)
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:190)
        at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:250)
        at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:92)
        ... 23 more
Caused by: org.sonatype.aether.transfer.ArtifactNotFoundException: Failure to find org.apache.maven.plugins:maven-war-plugin:jar:2.1 in http://repo1.m
aven.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.sonatype.aether.impl.internal.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:191)
        at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:384)
        ... 26 more
[ERROR]
[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/PluginResolutionException

Now I have tried updating the repository ect but I am having no luck.

Upon suggestion I have tried to update the plugin registry but there is no such file pugin-registry.xml on my file system.

Also it builds fine within eclipse but fails from command , so I'm guessing they are both using different versions. How to fix this?

Answer 1

Try using the -cpu flag. Output from mvn -help:

usage: mvn [options] [<goal(s)>] [<phase(s)>]

Options:
 -cpu,--check-plugin-updates            Force upToDate check for any
                                        relevant registered plugins

Answer 2

You are missing a plugin required for the Maven build to function. Check and tweak the values in the Plugin Registry such that an update is forced. You can also use command line parameters to force the download of the plugin.