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http://jira.codehaus.org/browse/MNG-4520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=205436#action_205436
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Olivier Lamy commented on MNG-4520:
-----------------------------------

why not move to http://mojo.codehaus.org/gwt-maven-plugin ? 
I'm not sure the one you are using is still supported.

> TOTSP GWT plugin fails to build GWT apps with Maven 3
> -----------------------------------------------------
>
>                 Key: MNG-4520
>                 URL: http://jira.codehaus.org/browse/MNG-4520
>             Project: Maven 2 & 3
>          Issue Type: Bug
>    Affects Versions: 3.0-alpha-5
>         Environment: $ mvn3 --version
> Apache Maven 3.0-alpha-6 (r896384; 2010-01-06 06:00:46-0500)
> Java version: 1.6.0_14
> Java home: /usr/lib/jvm/java-6-sun-1.6.0.14/jre
> Default locale: en_CA, platform encoding: UTF-8
> OS name: "linux" version: "2.6.27-16-generic" arch: "i386" Family: "unix"
> AND
> $ mvn --version
> Maven version: 2.0.9
> Java version: 1.6.0_14
> OS name: "linux" version: "2.6.27-16-generic" arch: "i386" Family: "unix"
>            Reporter: Basil James Whitehouse III
>         Attachments: m3-gwt-example.zip
>
>
> The attached sample project builds successfully with Maven 2.0.9 but fails 
> with Maven 3.0-alpha-5.  Note I got the same results with the [staged 
> 3.0-alpha-6|https://repository.apache.org/content/repositories/maven-014/org/apache/maven/apache-maven/3.0-alpha-6/]
>  which is used to produce the log in the sample.  I've attached logs for 
> running with Maven 2.0.9 and Maven 3 alpha.
> I used separate local repos for building with Maven 2 & 3 to isolate 
> artifacts.
> I'm using a feature of the gwt plugin to automatically setup the GWT tools to 
> compile the source.  This downloads the platform specific archive, extracts 
> it to the target directory, and then invokes GWTs platform specific complier.
> Under Maven 2 the gwt plugin goal of setup adds the platform specific gwt 
> archive to the dependencies for the next extractGwt goal to locate and 
> extract the gwt build tools.  Under Maven 3 I don't see this same dependency 
> being added.
> I know there are newer versions of this plugin and the Codehaus one 
> supersedes it, but I can't change the project at this point.
> To run you'll need to add the repo and plugin repo to the pom or settings.xml 
> (or repo manager):
> http://gwt-maven.googlecode.com/svn/trunk/mavenrepo/
> *Maven 2*
> $ mvn -X --batch-mode -Dmaven.repo.local=$(pwd)/repos/m2-gwt-plugin clean 
> install | tee mvn2-build.output
> <snip>
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] BUILD SUCCESSFUL
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Total time: 28 seconds
> [INFO] Finished at: Wed Jan 06 11:57:44 EST 2010
> [INFO] Final Memory: 18M/128M
> [INFO] 
> ------------------------------------------------------------------------
> *Maven 3*
> $ mvn3 -X --batch-mode -Dmaven.repo.local=$(pwd)/repos/m3-gwt-plugin clean 
> install | tee mvn3-build.output
> <snip>
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Total time: 2.924s
> [INFO] Finished at: Wed Jan 06 11:58:59 EST 2010
> [INFO] Final Memory: 4M/81M
> [INFO] 
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal 
> com.totsp.gwt:maven-googlewebtoolkit2-plugin:2.0-beta15:extractGwt 
> (compile-gwt) on project maven3-gwt-example: Error:  Could not load GWT 
> artifact.  Make sure you have the setup goal enabled for this plugin or that 
> you have setup a dependency on com.google.gwt:gwt-linux -> [Help 1]
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute 
> goal com.totsp.gwt:maven-googlewebtoolkit2-plugin:2.0-beta15:extractGwt 
> (compile-gwt) on project maven3-gwt-example: Error:  Could not load GWT 
> artifact.  Make sure you have the setup goal enabled for this plugin or that 
> you have setup a dependency on com.google.gwt:gwt-linux
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:570)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:317)
>       at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:247)
>       at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:104)
>       at org.apache.maven.cli.MavenCli.execute(MavenCli.java:422)
>       at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:157)
>       at org.apache.maven.cli.MavenCli.main(MavenCli.java:122)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:597)
>       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)
> Caused by: org.apache.maven.plugin.MojoExecutionException: Error:  Could not 
> load GWT artifact.  Make sure you have the setup goal enabled for this plugin 
> or that you have setup a dependency on com.google.gwt:gwt-linux
>       at com.totsp.mavenplugin.gwt.GWTExtractor.execute(GWTExtractor.java:152)
>       at 
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:105)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:562)
>       ... 14 more
> [ERROR] 
> [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/MojoExecutionException

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