from    

2.3.1.CR1

A Framework for

Enterprise Java

2.2. Setting up a new project

The first thing we need to do is configure seam-gen for your environment: JBoss AS installation

directory, project workspace, and database connection. It's easy, just type:

cd jboss-seam-2.3.0

seam setup

++++++++++++++++++++

on windows , command line

D:\jboss\jboss-seam-2.3.1.CR1> seam setup

generate the error:--->  seam setup Error: Could not find or load main class org.apache.tools.ant.launch.Launcher ...

+++++++++++++++

fix:

edit the seam.bat

instead:

"%JAVA_HOME%\bin\java" -cp "%JAVA_HOME%\lib\tools.jar;%SEAM_HOME%\lib\gen\ant-launcher.jar;%SEAM_HOME%\lib\gen\ant-nodeps.jar;%SEAM_HOME%\lib\gen\ant.jar" -Dant.home="%SEAM_HOME%\lib" org.apache.tools.ant.launch.Launcher -buildfile "%SEAM_GEN_DIR%\build.xml" -Dworking.dir="%WORKING_DIR%" %*

change to:

"%JAVA_HOME%\bin\java" -cp "%JAVA_HOME%\lib\tools.jar;%SEAM_HOME%\build\lib\ant-launcher.jar;%SEAM_HOME%\build\lib\ant-nodeps.jar;%SEAM_HOME%\build\lib\ant.jar" -Dant.home="%SEAM_HOME%\lib" org.apache.tools.ant.launch.Launcher -buildfile "%SEAM_GEN_DIR%\build.xml" -Dworking.dir="%WORKING_DIR%" %*

hope to save 1 hour of work to somebody ...