Probleme in using codehaus mojo plugin instead of gwt-maven

[samounas]

Hi everybody,

Please i need your help.

when i try to execute my project i found this error:

[ERROR] Could not find goal gwt in plugin org.codehaus.mojo:gwt-maven-
plugin:2.2.0 among available goals mergewebxml, soyc, compile-report,
sdkInstall, css, eclipse, eclipseTest, generateAsync, browser, source-
jar, help, i18n, compile, debug, clean, test, resources, run -> [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 articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoNotFoundException

In the official web site of maven they say that: org.codehaus.mojo is
automatically used in the run time. But there is a probleme because it
could not find automatically gwt-maven-plugin:2.2.0

Please help me.