java.lang.IllegalArgumentException: Already a project in C:\xampp\htdocs\rbcasia
	at org.netbeans.spi.project.support.ant.ProjectGenerator$1.run(ProjectGenerator.java:117)
	at org.netbeans.spi.project.support.ant.ProjectGenerator$1.run(ProjectGenerator.java:115)
	at org.openide.util.Mutex.writeAccess(Mutex.java:433)
	at org.openide.util.Mutex$1R.run(Mutex.java:1305)
	at org.netbeans.api.project.ProjectManager$2$1.run(ProjectManager.java:120)
	at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120)
	at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:499)
	at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:215)
	at org.netbeans.api.project.ProjectManager$2.execute(ProjectManager.java:118)
	at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1320)
	at org.openide.util.Mutex.writeAccess(Mutex.java:426)
	at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject0(ProjectGenerator.java:114)
	at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject(ProjectGenerator.java:95)
	at org.netbeans.modules.php.project.ui.wizards.NewPhpProjectWizardIterator.createProject(NewPhpProjectWizardIterator.java:262)
	at org.netbeans.modules.php.project.ui.wizards.NewPhpProjectWizardIterator.instantiate(NewPhpProjectWizardIterator.java:140)
	at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:1023)
	at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:595)
	at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:416)
	at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:253)
	at org.openide.loaders.TemplateWizardIteratorWrapper.instantiate(TemplateWizardIteratorWrapper.java:165)
	at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1463)
	at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1420)
	at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:119)
	at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1987)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)