Hello friends! I'm working with netbeans 6.8 and sdk nokia 6212 and i'm trying to run my first project with the simulator of this sdk and I always get the same result:

Starting emulator in execution mode

Usage: emulator [-options] [Application]
Xdescriptor: JAD file doesn't exist.
where options include:
-help Display this text
-version Display version information about the emulator
-classpath The class path for the VM
-Xverbose[:allocation | gc | gcverbose | class | classverbose | verifier
| stackmaps | bytecodes | methods | methodsverbose | frames
| stackchunks | exceptions | events | threading | monitors
| networking | all
Enable verbose output
-Xquery Print SDK option information and immediately exit
-Xnew Forces a new emulator instance to be created, even if
an existing emulator instance may be available for reuse.
-Xuse:<phone number>
Specifies a particular emulator instance to be reused, if that emulator
instance exists and emulator instance reuse has been enabled.
Specifies the message tracing level (0 to 9) for the KVM debug proxy.
-Xdebug Use a remote debugger
Debugging options
-Xdevice:<device name>
Name of the device to be emulated
-Xdescriptor:<jad file name>
The JAD file to be executed
-Xjam[:install=<jad or jar file url>]
Java Application Manager and support
for Over The Air provisioning (OTA)
(e.g. 65536 or 128k or 1M)
Specifies the VM heapsize
Defines the address and port number of the http proxy.
-Xinbox:<file path>
Specifies the path for the message inbox directory.
-Xlanguage:<language name>
Specifies the language for the SDK to operate in.
-Xoutbox:<file path>
Specifies the path for the message outbox directory.
-Xontop If specified the SDK GUI window will always be on top of all
other windows.
-Xsecurity_domain:<domain name>
Specifies a security domain for the MIDlet.
Domain name can take the one of following values: Trusted, Untrusted, Maximum, Minimum.

D:\Mis documentos\UCLM\3º (2)\Desarrollo de Componentes Software\ProyectoNFC\MobileApplication1\nbproject\build-impl.xml:889: Execution failed with error code 1.
GENERACIÓN INCORRECTA (total time: 1 second)

I have been searching for days and I have no solution. Does anybody know why of this result "Jad file doesn't exist" and the rest of the message??? how can I solve it?
Excuse of my english. thanks