I am using JabRef 5 with Windows 10. I have been using it for a while but now I cannot save a file that was working ok before. Now I get the message “Problems saving:: The exception stacktrace was” and then I get a long list which I have pasted below. Can anyone tell me what is wrong and how to fix it?
org.jabref.logic.exporter.SaveException: Problems saving:
at org.jabref/org.jabref.gui.exporter.SaveDatabaseAction.saveDatabase(Unknown Source)
at org.jabref/org.jabref.gui.exporter.SaveDatabaseAction.doSave(Unknown Source)
at org.jabref/org.jabref.gui.exporter.SaveDatabaseAction.save(Unknown Source)
at org.jabref/org.jabref.gui.exporter.SaveDatabaseAction.save(Unknown Source)
at org.jabref/org.jabref.gui.BasePanel.runCommand(Unknown Source)
at org.jabref/org.jabref.gui.actions.OldDatabaseCommandWrapper.execute(Unknown Source)
at org.jabref/org.jabref.gui.actions.JabRefAction.lambda$new$2(Unknown Source)
at org.jabref.merged.module/org.controlsfx.control.action.Action.handle(Unknown Source)
at org.jabref.merged.module/org.controlsfx.control.action.Action.handle(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at org.jabref.merged.module/javafx.event.Event.fireEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.Node.fireEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.Button.fire(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.scene.control.inputmap.InputMap.handle(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at org.jabref.merged.module/javafx.event.Event.fireEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.Scene$MouseHandler.process(Unknown Source)
at org.jabref.merged.module/javafx.scene.Scene.processMouseEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source)
at org.jabref.merged.module/com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
at org.jabref.merged.module/com.sun.glass.ui.View.notifyMouse(Unknown Source)
at org.jabref.merged.module/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at org.jabref.merged.module/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: Error in field ‘TITLE of entry Urpietal2016’: Unescaped ‘}’ character without opening bracket ends string prematurely. Field value: Dynamic simulation of CO{_2}-injection-induced fault rupture with slip-rate dependent friction coefficient
at org.jabref/org.jabref.logic.bibtex.BibEntryWriter.writeField(Unknown Source)
at org.jabref/org.jabref.logic.bibtex.BibEntryWriter.writeRequiredFieldsFirstRemainingFieldsSecond(Unknown Source)
at org.jabref/org.jabref.logic.bibtex.BibEntryWriter.write(Unknown Source)
at org.jabref/org.jabref.logic.exporter.BibtexDatabaseWriter.writeEntry(Unknown Source)
at org.jabref/org.jabref.logic.exporter.BibDatabaseWriter.savePartOfDatabase(Unknown Source)
at org.jabref/org.jabref.logic.exporter.BibDatabaseWriter.saveDatabase(Unknown Source)
… 62 more
Caused by: org.jabref.logic.bibtex.InvalidFieldValueException: Unescaped ‘}’ character without opening bracket ends string prematurely. Field value: Dynamic simulation of CO{_2}-injection-induced fault rupture with slip-rate dependent friction coefficient
at org.jabref/org.jabref.logic.bibtex.FieldWriter.checkBraces(Unknown Source)
at org.jabref/org.jabref.logic.bibtex.FieldWriter.formatAndResolveStrings(Unknown Source)
at org.jabref/org.jabref.logic.bibtex.FieldWriter.write(Unknown Source)
… 68 more