java.lang.IllegalArgumentException: Duplicate in children list: /home/jon/Projects/WebCertificates/framework/web/CClientScript.php
Children: [MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/actions@cb2156:d84a93,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/auth@1f66796:ebe75f,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/filters@196107b:ab839c,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/form@bbe6b:2adc9a,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/helpers@1f9bd83:3e7e4c,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/js@74b547:155388b,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/renderers@22ef16:bef803,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/services@1432a60:16e0966,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/widgets@140
   at org.openide.filesystems.Ordering.getOrder(Ordering.java:101)
   at org.openide.filesystems.FileUtil.getOrder(FileUtil.java:2162)
   at org.openide.loaders.FolderChildren$1R.run(FolderChildren.java:160)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.IllegalArgumentException: Duplicate in children list: /home/jon/Projects/WebCertificates/framework/web/CClientScript.php
Children: [MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/actions@cb2156:d84a93,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/auth@1f66796:ebe75f,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/filters@196107b:ab839c,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/form@bbe6b:2adc9a,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/helpers@1f9bd83:3e7e4c,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/js@74b547:155388b,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/renderers@22ef16:bef803,valid=true], MasterFileObject[/home/jon/Projects/WebCertificates/framework/web/services@1432a60:16e0966,valid=true], MasterFileObj
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:425)
   at org.openide.loaders.FolderChildren.refreshChildren(FolderChildren.java:194)
   at org.openide.loaders.FolderChildren.propertyChange(FolderChildren.java:128)
   at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:196)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.openide.loaders.FolderList.refresh(FolderList.java:380)
   at org.openide.loaders.FolderList.fileDataCreated(FolderList.java:517)
   at sun.reflect.GeneratedMethodAccessor12.invoke(GeneratedMethodAccessor12.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:459)
   at $Proxy1.fileDataCreated(.java:0)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:139)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:128)
   at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:105)
   at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1146)
   at org.openide.filesystems.FileSystem$EventDispatcher.run(FileSystem.java:943)
   at org.openide.filesystems.EventControl.dispatchEvent(EventControl.java:82)
   at org.openide.filesystems.FileSystem.dispatchEvent(FileSystem.java:601)
   at org.openide.filesystems.FileObject.dispatchEvent(FileObject.java:548)
   at org.openide.filesystems.FileObject.fireFileDataCreatedEvent(FileObject.java:500)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.fireFileDataCreatedEvent(BaseFileObj.java:563)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:436)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:748)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:493)
   at org.openide.filesystems.FileObject.refresh(FileObject.java:1059)
   at org.netbeans.modules.masterfs.watcher.Watcher$1.run(Watcher.java:228)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)