Ignored files found that are tracked - show details causes IDE error

[zemudkram]

Argument for @NotNull parameter 'file' of mobi/hsz/idea/gitignore/ui/untrackFiles/UntrackFilesDialog.createDirectoryNodes must not be null
java.lang.IllegalArgumentException: Argument for @NotNull parameter 'file' of mobi/hsz/idea/gitignore/ui/untrackFiles/UntrackFilesDialog.createDirectoryNodes must not be null
	at mobi.hsz.idea.gitignore.ui.untrackFiles.UntrackFilesDialog.$$$reportNull$$$0(UntrackFilesDialog.java)
	at mobi.hsz.idea.gitignore.ui.untrackFiles.UntrackFilesDialog.createDirectoryNodes(UntrackFilesDialog.java)
	at mobi.hsz.idea.gitignore.ui.untrackFiles.UntrackFilesDialog.createTreeScrollPanel(UntrackFilesDialog.java:166)
	at mobi.hsz.idea.gitignore.ui.untrackFiles.UntrackFilesDialog.createCenterPanel(UntrackFilesDialog.java:145)
	at com.intellij.openapi.ui.DialogWrapper.init(DialogWrapper.java:1307)
	at mobi.hsz.idea.gitignore.ui.untrackFiles.UntrackFilesDialog.<init>(UntrackFilesDialog.java:100)
	at mobi.hsz.idea.gitignore.TrackedIgnoredFilesComponent$1.hyperlinkUpdate(TrackedIgnoredFilesComponent.java:125)
	at com.intellij.notification.impl.ui.NotificationsUtil$1.hyperlinkUpdate(NotificationsUtil.java:157)
	at javax.swing.JEditorPane.fireHyperlinkUpdate(JEditorPane.java:342)
	at javax.swing.text.html.HTMLEditorKit$LinkController.activateLink(HTMLEditorKit.java:875)
	at javax.swing.text.html.HTMLEditorKit$LinkController.mouseClicked(HTMLEditorKit.java:674)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:270)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:269)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:269)
	at java.awt.Component.processMouseEvent(Component.java:6536)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
	at java.awt.Component.processEvent(Component.java:6298)
	at java.awt.Container.processEvent(Container.java:2236)
	at java.awt.Component.dispatchEventImpl(Component.java:4889)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4534)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
	at java.awt.Container.dispatchEventImpl(Container.java:2280)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.awt.EventQueue$4.run(EventQueue.java:729)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
	at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:843)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:675)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:391)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

[zemudkram]

Happens when I click "Show details" in this popup:

[rafiqrahim]

I have some projects which ignore workspace.xml in git. This error will recreate workspace.xml and all previous IDE settings in that will be lost.