mvn 运行出现如下错误。
C:\Documents and Settings\YUCHENGHU>mvn
FATAL ERROR: Unable to start the embedded plexus container
For more information, run with the -e flag
C:\Documents and Settings\YUCHENGHU>
可以用打开错误提示的方式来查看错误的原因。
C:\Documents and Settings\YUCHENGHU>mvn -e flag
+ Error stacktraces are turned on.
FATAL ERROR: Unable to start the embedded plexus container
Error stacktrace:
org.codehaus.plexus.PlexusContainerException: Error starting container
at org.codehaus.plexus.DefaultPlexusContainer.start(DefaultPlexusContain
er.java:795)
at org.codehaus.plexus.embed.Embedder.start(Embedder.java:220)
at org.codehaus.plexus.embed.Embedder.start(Embedder.java:183)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:167)
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.codehaus.plexus.component.repository.exception.ComponentRepositor
yException: Component descriptor role: 'org.apache.maven.wagon.CommandExecutor',
implementation: 'org.apache.maven.wagon.providers.ssh.external.ScpExternalComma
ndExecutor', role hint: 'scpexe' has a hint, but there are other implementations
that don't
at org.codehaus.plexus.component.repository.DefaultComponentRepository.a
ddComponentDescriptor(DefaultComponentRepository.java:184)
at org.codehaus.plexus.DefaultPlexusContainer.addComponentDescriptor(Def
aultPlexusContainer.java:515)
at org.codehaus.plexus.DefaultPlexusContainer.discoverComponents(Default
PlexusContainer.java:738)
at org.codehaus.plexus.DefaultPlexusContainer.start(DefaultPlexusContain
er.java:779)
... 11 more
C:\Documents and Settings\YUCHENGHU>
出现错误的原因是mvn的版本不匹配。
通过查看版本的命令来查看当前的 mvn 版本，现在可以知道2.0.11的mvn版本和 JDK 1.6的版本不兼容。
可以试着用最新的 mvn 版本替换。
C:\Documents and Settings\YUCHENGHU>mvn -v
Apache Maven 2.0.11 (r909250; 2010-02-12 00:55:50-0500)
Java version: 1.6.0_11
Java home: C:\Program Files\Java\jdk1.6.0_11\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows xp" version: "5.1" arch: "x86" Family: "windows"
C:\Documents and Settings\YUCHENGHU>
