anyone know why?

Code:

---

aion@ubuntu:/home/server/ac-go/trunk/Commons$ cd ../AC-Login
aion@ubuntu:/home/server/ac-go/trunk/AC-Login$ mvn
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO]

You must specify at least one goal or lifecycle phase to perform build steps.
The following list illustrates some commonly used build commands:

  mvn clean
    Deletes any build output (e.g. class files or JARs).
  mvn test
    Runs the unit tests for the project.
  mvn install
    Copies the project artifacts into your local repository.
  mvn deploy
    Copies the project artifacts into the remote repository.
  mvn site
    Creates project documentation (e.g. reports or Javadoc).

Please see
http://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html
for a complete description of available lifecycle phases.

Use "mvn --help" to show general usage information about Maven's command line.


[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Fri Nov 18 02:21:44 PST 2011
[INFO] Final Memory: 2M/77M
[INFO] ------------------------------------------------------------------------
aion@ubuntu:/home/server/ac-go/trunk/AC-Login$ mvn test
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO]    task-segment: [test]
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Cannot execute mojo: resources. It requires a project with an existing pom.xml, but the build is not using one.
[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Fri Nov 18 02:21:52 PST 2011
[INFO] Final Memory: 3M/77M
[INFO] ------------------------------------------------------------------------
aion@ubuntu:/home/server/ac-go/trunk/AC-Login$ mvn test -e
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO]    task-segment: [test]
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Cannot execute mojo: resources. It requires a project with an existing pom.xml, but the build is not using one.
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Cannot execute mojo: resources. It requires a project with an existing pom.xml, but the build is not using one.
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
        at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
        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:616)
        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: Cannot execute mojo: resources. It requires a project with an existing pom.xml, but the build is not using one.
        at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:414)
        at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
        ... 17 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Fri Nov 18 02:22:06 PST 2011
[INFO] Final Memory: 3M/77M
[INFO] ------------------------------------------------------------------------
aion@ubuntu:/home/server/ac-go/trunk/AC-Login$ mvn install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Default Project
[INFO]    task-segment: [install]
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Cannot execute mojo: resources. It requires a project with an existing pom.xml, but the build is not using one.
[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Fri Nov 18 02:24:50 PST 2011
[INFO] Final Memory: 4M/77M
[INFO] ------------------------------------------------------------------------
aion@ubuntu:/home/server/ac-go/trunk/AC-Login$

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well im just trying my luck on linux server
i have done aion server on window. trying to make it on linux
to get more experience on linux by this link anyone knw what the reason? i try 6. Compile the source code with Maven this error out.