Im new to j2me and I cant install the application on a sonyericsson k750i

Question

Any idea what to do?
I downlaoded Wireless Toolkit 2.5.2 - as i was not able to compile the stuff by myself.
Later i managed to compile by batch...
But somehow it doesnt matter how i compile.
I can build the demo application, i got somewhere:
public class AIRC extends MIDlet implements CommandListener{
private Display display;
private TextBox tbxMain;
private Command cmdExit;
public AIRC(){
display = Display.getDisplay(this);
cmdExit = new Command("Exit", Command.SCREEN, 1);
tbxMain = new TextBox("AIRC", "Welcome", 50, 0);
tbxMain.addCommand(cmdExit);
tbxMain.setCommandListener(this);
public void startApp(){
display.setCurrent(tbxMain);
public void pauseApp(){}
public void destroyApp(boolean unconditional){}
// Check to see if our Exit command was selected
public void commandAction(Command c, Displayable s) {
if (c == cmdExit){
destroyApp(false);
notifyDestroyed();
after creating the package and trying to install it on my mobile phone, i get "Operation ist Fehlgeschlagen" == "Operation Failed", no more info.
when i try to run it on the midp.exe emulator I got 2 diffrent errors
midp -descriptor airc.jar
java.io.UTFDataFormatException: invalid first byte 10110101 <-- this value is different every compilation/verifying/packaging
midp -descriptor airc.jad
Unable to create MIDlet AIRC
java.lang.ClassNotFoundException: AIRC
When I try to run it on the normal WTK emulator it works.
ANY idea what to do?
or what im doing wrong?
jad
MIDlet-1: AIRC, AIRC.png, AIRC
MIDlet-Jar-Size: 1562
MIDlet-Jar-URL: AIRC.jar
MIDlet-Name: AIRC
MIDlet-Vendor: Somenet
MIDlet-Version: 1.0
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-2.0
manifest
Manifest-Version: 1.0
MIDlet-Vendor: Somenet
MIDlet-Version: 1.0
MicroEdition-Configuration: CLDC-1.0
MIDlet-1: AIRC, AIRC.png, AIRC
Created-By: 1.6.0_03 (Sun Microsystems Inc.)
MIDlet-Name: AIRC
MicroEdition-Profile: MIDP-2.0
PS: im on w2k server

Answer 1

Stsrt here and look for the correct files:
http://support.apple.com/downloads/#Java