[m2e-users] error in mvn archetype:generate -DarchetypeGroupId=org.codeh

[m2e-users] error in mvn archetype:generate -DarchetypeGroupId=org.codehaus.mojo -DarchetypeArtifactId=gwt-maven-plugin -DarchetypeVersion=2.4.0

From: tong123123 <tong123123@xxxxxxxxxxxx>
Date: Sun, 19 Aug 2012 13:47:12 +0800 (SGT)
Delivered-to: m2e-users@xxxxxxxxxxx
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.hk; h=X-YMail-OSG:Received:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=A1z/v7AFUDWs4d5xs4rCEef/o5fscAGLv6Yy6lNMYSSaT6hJzKpSnQOF0y4tYoDkatkVHwzQX9FyV7m6jvY38QHu/CJWActcckpLuTEQrB7Nope1eTkThsv5bUxgMwoyKqVNfYjy58ZZDDhrtM7Po8Vu5OP4oykzyIbAeyb3Wa4=;
List-archive: <https://dev.eclipse.org/mailman/private/m2e-users>
List-help: <mailto:m2e-users-request@eclipse.org?subject=help>
List-subscribe: <https://dev.eclipse.org/mailman/listinfo/m2e-users>, <mailto:m2e-users-request@eclipse.org?subject=subscribe>
List-unsubscribe: <https://dev.eclipse.org/mailman/options/m2e-users>, <mailto:m2e-users-request@eclipse.org?subject=unsubscribe>

I use the command

mvn archetype:generate -DarchetypeGroupId=org.codehaus.mojo -DarchetypeArtifactId=gwt-maven-plugin -DarchetypeVersion=2.4.0

as in

http://mojo.codehaus.org/gwt-maven-plugin/user-guide/archetype.html

just change the version from 2.5.0-rc1 to 2.4. (as shown in attachment gwt-maven1.jpg)

then I import the project to eclipse but found many error as attachment gwt-maven2.jpg.

I already installed m2e and Google Eclipse plugins

what is the problem?

Attachment: gwt-maven1.JPG
Description: JPEG image

Attachment: gwt-maven2.jpg
Description: JPEG image

Attachment: gwt-maven3.JPG
Description: JPEG image

Attachment: gwt-maven4.JPG
Description: JPEG image