Making android apps using netbeans

[vinit mav]

I just installed nbandroid plugin for netbeans 6.9.1 but when i run the below code


package com.testing123;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}


I get the following error:

Compiling aidl files into Java classes...
Compiling RenderScript files into Java classes and RenderScript bytecode...
Generating R.java / Manifest.java from the resources...
compile:
C:\Android\android-sdk\tools\ant\main_rules.xml:384: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
Compiling 1 source file to C:\Documents and Settings\Vinit\Desktop\AndroidApplication1\bin\classes
Converting compiled files and external libraries into C:\Documents and Settings\Vinit\Desktop\AndroidApplication1\bin\classes.dex...
=C:\Documents was unexpected at this time.
C:\Android\android-sdk\tools\ant\main_rules.xml:486: The following error occurred while executing this line:
C:\Android\android-sdk\tools\ant\main_rules.xml:203: apply returned: 255

I browsed the net and found that i had to change includeantruntime attribute in some xml file.I did'nt understand how to do and what to do
can anyone tell me how can i solve this error?