Java EE (Java Enterprise Edition) General Discussion

hi I m new
and I try to compile the client source code for Hello World example.
I m typing this prompt but there is a problem:
ant compile-client
is anybody? help me?
Thanks for your ideas!!!

C:\jwsdp-1.2\docs\tutorial\examples\jaxrpc\hello>ant compile-client
Buildfile: build.xml

prepare:
[echo] Creating the required directories....

compile-client:
[echo] Compiling the client source code....
[javac] Compiling 1 source file to C:\jwsdp-1.2\docs\tutorial\examples\jaxrp
c\hello\build\client
[javac] C:\jwsdp-1.2\docs\tutorial\examples\jaxrpc\hello\HelloClient.java:51
: cannot access com.sun.xml.rpc.client.BasicService
[javac] file com\sun\xml\rpc\client\BasicService.class not found
[javac] return (Stub)(new MyHello_Impl().getHelloIFPort());
[javac] ^
[javac] 1 error

BUILD FAILED
file:C:/jwsdp-1.2/docs/tutorial/examples/jaxrpc/common/targets.xml:152: Compile
failed; see the compiler error output for details.

Total time: 43 seconds