我正在跟进5 分钟内完成 Maven http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html手册包含以下内容：
mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
我收到以下错误：
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.160s
[INFO] Finished at: Sat Dec 10 16:27:55 ICT 2011
[INFO] Final Memory: 2M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (
D:\experiment\maven). Please verify you invoked Maven from the correct directory. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[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 arti
cles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProjectException
更多信息：
PS D:\experiment\maven> ping http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-archetype-plugin/2.2/maven-archetype-plugin-2.2.pom
Ping request could not find host http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-archetype-plugin/2.2/maven-archetype-plugin-2.2.pom. Please check the name and try again.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.869s
[INFO] Finished at: Sat Dec 10 19:03:37 ICT 2011
[INFO] Final Memory: 2M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (
D:\experiment\maven). Please verify you invoked Maven from the correct directory. -> [Help 1]
org.apache.maven.lifecycle.MissingProjectException: The goal you specified requires a project to exe
cute but there is no POM in this directory (D:\experiment\maven). Please verify you invoked Maven fr
om the correct directory.
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:89)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
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)
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following arti
cles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProjectException
我使用的是 Windows 7 SP1。
我遇到这个问题是因为我使用 PowerShell 运行它。
当我使用 CMD.EXE 运行它时，它工作正常。
感谢大家的帮助。
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