I was not able to reproduce this with the given steps.
Both time the add import dialog came up.

Tested again using NetBeans IDE 6.1 (Build 200810170103) and was able to reproduce the problem.

can you attach the new stacktrace?

Fixed:
soarelease
Changeset:http://hg.netbeans.org/soarelease/rev/3b7df0c5cc73

soa-dev:
Changeset: http://hg.netbeans.org/soa-dev/rev/2f95e2179219

Tested using 10/22 gfesb and still getting the same error.

org.openide.filesystems.FileStateInvalidException: C:\Users\ggenipudi\Documents\NetBeansProjects\prjABC
	at org.openide.loaders.DataObject.find(DataObject.java:478)
Caused: org.openide.loaders.DataObjectNotFoundException: C:\Users\ggenipudi\Documents\NetBeansProjects\prjABC
	at org.openide.loaders.DataObject.find(DataObject.java:498)
	at org.openide.loaders.DataFolder.findFolder(DataFolder.java:515)
Caused: java.lang.IllegalArgumentException
	at org.openide.loaders.DataFolder.findFolder(DataFolder.java:517)
	at org.netbeans.modules.xml.wsdl.ui.wizard.WSDLWizardIterator.createPanels(WSDLWizardIterator.java:227)
	at org.netbeans.modules.xml.wsdl.ui.wizard.WSDLWizardIterator.initialize(WSDLWizardIterator.java:195)
	at org.openide.loaders.TemplateWizardIterImpl.setIterator(TemplateWizardIterImpl.java:100)
	at org.openide.loaders.TemplateWizardIteratorWrapper.setIterator(TemplateWizardIteratorWrapper.java:76)
	at org.openide.loaders.TemplateWizard.setTemplateImpl(TemplateWizard.java:200)
	at org.openide.loaders.TemplateWizard.setTemplate(TemplateWizard.java:218)
	at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:465)
	at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:381)
	at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:153)
	at org.netbeans.modules.project.ui.actions.NewFile.access$200(NewFile.java:84)
	at org.netbeans.modules.project.ui.actions.NewFile$PopupListener.actionPerformed(NewFile.java:348)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1216)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1257)
	at java.awt.Component.processMouseEvent(Component.java:6038)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5803)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4410)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4240)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
	at java.awt.Container.dispatchEventImpl(Container.java:2102)
	at java.awt.Window.dispatchEventImpl(Window.java:2429)
	at java.awt.Component.dispatchEvent(Component.java:4240)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

Tested and verifed using NetBeans IDE 6.1 (Build 200810140114) + gfesb 10/24  and was able to do until step 6 and then
was able to create wsdlABC (I was not able to do this earlier builds) but when I do step 4 again after opening the WSDL
I see same error.

java.lang.IllegalStateException: Current thread has already started a transaction
	at org.netbeans.modules.xml.xam.AbstractModel.startTransaction(AbstractModel.java:346)
	at org.netbeans.modules.xml.xam.AbstractModel.startTransaction(AbstractModel.java:341)
	at org.netbeans.modules.xml.wsdl.ui.view.treeeditor.newtype.ImportWSDLNewType.create(ImportWSDLNewType.java:92)
	at org.openide.actions.NewAction.performAction(NewAction.java:100)
	at org.openide.actions.NewAction.access$100(NewAction.java:64)
	at org.openide.actions.NewAction$ActSubMenuModel.performActionAt(NewAction.java:245)
	at org.openide.actions.NewAction$DelegateAction.actionPerformed(NewAction.java:287)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261)
	at java.awt.Component.processMouseEvent(Component.java:6041)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5806)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4413)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4243)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
	at java.awt.Container.dispatchEventImpl(Container.java:2102)
	at java.awt.Window.dispatchEventImpl(Window.java:2440)
	at java.awt.Component.dispatchEvent(Component.java:4243)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

Created attachment 72624 [details]
log file

I see a FileStateInvalidException again in add import case, and after that I see the transaction already started.

This seems to be a bug with bpel project delete. I tried the same with java project, and everything seems to work fine.
I can see it with xslt project also.

Also, its not limited to new wsdl wizard, it can also be reproduced with new bpel, new schema wizards too.

Reassigning to bpel project, please evaluate whether the fix needs to go into bpel.project. I tried to debug the bpel
project, but was lost.
I am thinking its something to do with the file cache has state data, even though files are deleted. And the
FileObject.isValid return false, even though the project is newly created again.

ccing Radek to see if there are any comments on this problem.

1. New Project, SOA > New Bpel project.
2. Delete a bpel project
3. Create a bpel or schema file

See exception as in first comment.

It happens when DataFolder.findFolder(project.getProjectDirectory()) is called. The
project.getProjectDirectory().isValid returns false, which ideally should not happen (and return true).

The source of problem could be the same as for 148288

*** This issue has been marked as a duplicate of 148288 ***

this issue is tracked through 148288