java.lang.AssertionError: Site root must exist: C:\Users\jskrivanek\Documents\NetBeansProjects\JavaApplication1\src
   at org.netbeans.modules.web.clientproject.ClientSideProjectUtilities.initializeProject(ClientSideProjectUtilities.java:93)
   at org.netbeans.modules.web.clientproject.ui.wizard.ClientSideProjectWizardIterator$ExistingProjectWizard.instantiate(ClientSideProjectWizardIterator.java:379)
   at org.netbeans.modules.web.clientproject.ui.wizard.ClientSideProjectWizardIterator.instantiate(ClientSideProjectWizardIterator.java:128)
   at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:1022)
   at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:589)
   at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:432)
   at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:253)
   at org.openide.loaders.TemplateWizardIteratorWrapper$ProgressInstantiatingIterator.instantiate(TemplateWizardIteratorWrapper.java:180)
   at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1555)
   at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1499)
   at org.openide.WizardDescriptor.access$2100(WizardDescriptor.java:89)
   at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:2139)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.AssertionError: Site root must exist: C:\Users\jskrivanek\Documents\NetBeansProjects\JavaApplication1\src
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:424)
   at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:2186)
   at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1474)
   at org.openide.WizardDescriptor.access$1700(WizardDescriptor.java:89)
   at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:2204)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:601)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:457)
   at $Proxy31.actionPerformed(.java:0)
   at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
   at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
   at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
   at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
   at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
   at java.awt.Component.processMouseEvent(Component.java:6505)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
   at java.awt.Component.processEvent(Component.java:6270)
   at java.awt.Container.processEvent(Container.java:2229)
   at java.awt.Component.dispatchEventImpl(Component.java:4861)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4492)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422)
   at java.awt.Container.dispatchEventImpl(Container.java:2273)
   at java.awt.Window.dispatchEventImpl(Window.java:2719)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:713)
   at java.awt.EventQueue.access$000(EventQueue.java:104)
   at java.awt.EventQueue$3.run(EventQueue.java:672)
   at java.awt.EventQueue$3.run(EventQueue.java:670)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at java.awt.EventQueue$4.run(EventQueue.java:686)
   at java.awt.EventQueue$4.run(EventQueue.java:684)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:683)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:155)
   at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
   at java.awt.Dialog.show(Dialog.java:1077)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1074)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1109)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1096)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126)
   at org.openide.util.Mutex.doEventAccess(Mutex.java:1363)
   at org.openide.util.Mutex.readAccess(Mutex.java:273)
   at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1081)
   at java.awt.Component.show(Component.java:1651)
   at java.awt.Component.setVisible(Component.java:1603)
   at java.awt.Window.setVisible(Window.java:1014)
   at java.awt.Dialog.setVisible(Dialog.java:1003)
   at org.netbeans.core.windows.services.DialogDisplayerImpl$1AWTQuery.showDialog(DialogDisplayerImpl.java:260)
   at org.netbeans.core.windows.services.DialogDisplayerImpl$1AWTQuery.run(DialogDisplayerImpl.java:186)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:711)
   at java.awt.EventQueue.access$000(EventQueue.java:104)
   at java.awt.EventQueue$3.run(EventQueue.java:672)
   at java.awt.EventQueue$3.run(EventQueue.java:670)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:681)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)