Hi

I add wagon-ftp-beta-4 to wagon-maven-plugin-beta-2-snapshot dependency and run

mvn wagon:list -Dwagon.url=ftp://ftp.ibiblio.org/incoming

This command runs without the need of a pom.xml

but maven could not load my desired maven-ftp.  What can i do?

G:\dev\mojo\wagon-maven-plugin>mvn wagon:list -Dwagon.url=ftp://ftp.ibiblio.org/
incoming -e
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'wagon'.
WAGON_VERSION: 1.0-beta-2
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Wagon plugin
[INFO]    task-segment: [wagon:list] (aggregator-style)
[INFO] ------------------------------------------------------------------------
[INFO] [wagon:list]
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Unable to create a Wagon instance for ftp://ftp.ibiblio.org/incoming

Embedded error: Cannot find wagon which supports the requested protocol: ftp
Component descriptor cannot be found in the component repository: org.apache.mav
en.wagon.Wagonftp.
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Unable to create a Wagon
 instance for ftp://ftp.ibiblio.org/incoming
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
ultLifecycleExecutor.java:701)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandalone
Goal(DefaultLifecycleExecutor.java:551)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau
ltLifecycleExecutor.java:521)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan
dleFailures(DefaultLifecycleExecutor.java:369)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen
ts(DefaultLifecycleExecutor.java:266)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi
fecycleExecutor.java:181)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:302)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        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.MojoExecutionException: Unable to create a Wa
gon instance for ftp://ftp.ibiblio.org/incoming
        at org.codehaus.mojo.wagon.AbstractWagonMojo.createWagon(AbstractWagonMo
jo.java:83)
        at org.codehaus.mojo.wagon.AbstractSingleWagonMojo.execute(AbstractSingl
eWagonMojo.java:62)
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi
nManager.java:458)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
ultLifecycleExecutor.java:676)
        ... 16 more
Caused by: org.apache.maven.wagon.UnsupportedProtocolException: Cannot find wago
n which supports the requested protocol: ftp
        at org.apache.maven.artifact.manager.DefaultWagonManager.getWagon(Defaul
tWagonManager.java:147)
        at org.apache.maven.artifact.manager.DefaultWagonManager.getWagon(Defaul
tWagonManager.java:128)
        at org.codehaus.mojo.wagon.shared.WagonUtils.createWagon(WagonUtils.java
:53)
        at org.codehaus.mojo.wagon.AbstractWagonMojo.createWagon(AbstractWagonMo
jo.java:79)
        ... 19 more
Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupExc
eption: Component descriptor cannot be found in the component repository: org.ap
ache.maven.wagon.Wagonftp.
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContai
ner.java:323)
        at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContai
ner.java:440)
        at org.apache.maven.artifact.manager.DefaultWagonManager.getWagon(Defaul
tWagonManager.java:143)
        ... 22 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2 seconds
[INFO] Finished at: Mon Dec 08 21:13:14 PST 2008
[INFO] Final Memory: 5M/11M
[INFO] ------------------------------------------------------------------------
G:\dev\mojo\wagon-maven-plugin>

Thanks

-Dan

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