Error al ejecutar Ant en XML Beans/Error by trying to execute ant on DOS

Al ejecutar el comando Ant en DOS,este envia un mensaje de error//By trying to execute the ant command appears a messge like "ant not expected at this time"
"no se esperaba en este momento".
Por que sucede esto? /Why happens this?

C:\xmlbeans-2.2.0>ant
No se esperaba de en este momento.
 y al ejecutar el comando scomp envia lo sgte// And when trying to execute the  scomp-out command appears the following


C:\xmlbeans-2.2.0>scomp -out
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
 
where options include:
-client to select the "client" VM
-server to select the "server" VM
-hotspot is a synonym for the "client" VM [deprecated]
The default VM is client.
 
-cp <class search path of directories and zip/jar files>
-classpath <class search path of directories and zip/jar files>
A ; separated list of directories, JAR archives,
and ZIP archives to search for class files.
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version print product version and exit
-version:<value>
require the specified version to run
-showversion print product version and continue
-jre-restrict-search | -jre-no-restrict-search
include/exclude user private JREs in the version search
-? -help print this help message
-X print help on non-standard options
-ea[:<packagename>...|:<classname>]
-enableassertions[:<packagename>...|:<classname>]
enable assertions
-da[:<packagename>...|:<classname>]
-disableassertions[:<packagename>...|:<classname>]
disable assertions
-esa | -enab
Espero su valiosa respuesta//I hope your value response
eduardojsAsked:
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eduardojsAuthor Commented:
Im waiting for your value and quick help
0
VenabiliCommented:
try to give full path to ant - my Spanish is very bad but I think that it just cannot find the command.

For scomp - you need to tell to the command which schema you want to compile
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eduardojsAuthor Commented:
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