# SerializationException: Error during serialization for property 'contentPane' on object '\[FPMIWindow\]TestWindow' **URL:** \ **Category:** Ignition\ **Tags:** ignition81, vision\ **Created:** [November 1, 2023, 10:02pm UTC](https://forum.inductiveautomation.com/t/serializationexception-error-during-serialization-for-property-contentpane-on-object-fpmiwindow-testwindow/81336 "2023-11-01T22:02:26Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Tyler\_Dolan](https://avatars.discourse-cdn.com/v4/letter/t/b5ac83/32.png) [@Tyler\_Dolan](https://forum.inductiveautomation.com/u/Tyler_Dolan)\ **Post date:** [November 1, 2023, 10:02pm UTC](https://forum.inductiveautomation.com/t/serializationexception-error-during-serialization-for-property-contentpane-on-object-fpmiwindow-testwindow/81336/1 "2023-11-01T22:02:26Z")
Hello, I have a problem where if I create a new window, add a button (or other components) and attempt to save, I get the following error: ```auto com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Error during serialization for property 'contentPane' on object '[FPMIWindow]TestWindow' at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:157) at com.inductiveautomation.factorypmi.designer.xmlserialization.WindowDelegate.serialize(WindowDelegate.java:34) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:53) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializer.serialize(XMLSerializer.java:529) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializer.serializeBinary(XMLSerializer.java:510) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.saveContainer(WindowWorkspace.java:1839) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.commitDesignable(WindowWorkspace.java:1540) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.commitAll(WindowWorkspace.java:1097) at com.inductiveautomation.factorypmi.designer.model.VisionDesignerImpl.notifyProjectSaveStart(VisionDesignerImpl.java:617) at com.inductiveautomation.ignition.designer.IgnitionDesigner.commitAll(IgnitionDesigner.java:1610) at com.inductiveautomation.ignition.designer.IgnitionDesigner.handleSave(IgnitionDesigner.java:1375) at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler.handleSaveAction(IgnitionDesigner.java:2822) at com.inductiveautomation.ignition.designer.IgnitionDesigner$Handler$5.actionPerformed(IgnitionDesigner.java:2402) at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source) at java.desktop/javax.swing.AbstractButton.doClick(Unknown Source) at java.desktop/javax.swing.AbstractButton.doClick(Unknown Source) at java.desktop/javax.swing.plaf.basic.BasicMenuItemUI$Actions.actionPerformed(Unknown Source) at java.desktop/javax.swing.SwingUtilities.notifyAction(Unknown Source) at java.desktop/javax.swing.JComponent.processKeyBinding(Unknown Source) at java.desktop/javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(Unknown Source) at java.desktop/javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(Unknown Source) at java.desktop/javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(Unknown Source) at java.desktop/javax.swing.JMenuBar.processKeyBinding(Unknown Source) at java.desktop/javax.swing.KeyboardManager.fireBinding(Unknown Source) at java.desktop/javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source) at java.desktop/javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source) at java.desktop/javax.swing.JComponent.processKeyBindings(Unknown Source) at java.desktop/javax.swing.JComponent.processKeyEvent(Unknown Source) at java.desktop/java.awt.Component.processEvent(Unknown Source) at java.desktop/java.awt.Container.processEvent(Unknown Source) at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source) at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source) at java.desktop/java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source) at java.desktop/java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source) at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source) at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.Component.dispatchEvent(Unknown Source) at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.desktop/java.awt.EventQueue$4.run(Unknown Source) at java.desktop/java.awt.EventQueue$4.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.desktop/java.awt.EventQueue$5.run(Unknown Source) at java.desktop/java.awt.EventQueue$5.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source) at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.desktop/java.awt.EventDispatchThread.run(Unknown Source) Caused by: com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Error during serialization for property 'font' on object '[PMIButton]PMIButton: Button' at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:157) at com.inductiveautomation.factorypmi.designer.xmlserialization.DefaultComponentDelegate.serializeProperties(DefaultComponentDelegate.java:112) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serialize(DefaultObjectSerializationDelegate.java:184) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:53) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:90) at com.inductiveautomation.factorypmi.designer.xmlserialization.BasicContainerDelegate.serializeProperties(BasicContainerDelegate.java:120) at com.inductiveautomation.factorypmi.designer.xmlserialization.BasicContainerDelegate.serialize(BasicContainerDelegate.java:45) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:53) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:90) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:77) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.doProperty(DefaultObjectSerializationDelegate.java:134) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:155) ... 61 more Caused by: com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Unable to create clean copy of class de.javasoft.plaf.synthetica.ScalableFont at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializer.getCleanCopy(XMLSerializer.java:595) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.getCleanCopy(XMLSerializationContext.java:75) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:147) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serialize(DefaultObjectSerializationDelegate.java:184) at com.inductiveautomation.ignition.common.xmlserialization.serialization.XMLSerializationContext.serialize(XMLSerializationContext.java:53) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:90) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.writeCall(DefaultObjectSerializationDelegate.java:77) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.doProperty(DefaultObjectSerializationDelegate.java:134) at com.inductiveautomation.ignition.common.xmlserialization.serialization.DefaultObjectSerializationDelegate.serializeProperties(DefaultObjectSerializationDelegate.java:155) ... 72 more Ignition v8.1.25 (b2023021409) Java: Azul Systems, Inc. 11.0.17 ``` I checked the forums and found people with serialization exception errors, however, in their cases it seemed to be an issue where there was a mismatch between a property's type and the type they were trying to bind it to. I've tried changing the font of the button, but that didn't help. I've also tried clearing the cache. ---
**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\ **Post date:** [November 2, 2023, 1:41pm UTC](https://forum.inductiveautomation.com/t/serializationexception-error-during-serialization-for-property-contentpane-on-object-fpmiwindow-testwindow/81336/2 "2023-11-02T13:41:54Z")
It allows you to save the window if there are no components added? ---
**Author:** ![Tyler\_Dolan](https://avatars.discourse-cdn.com/v4/letter/t/b5ac83/32.png) [@Tyler\_Dolan](https://forum.inductiveautomation.com/u/Tyler_Dolan)\ **Post date:** [November 2, 2023, 3:39pm UTC](https://forum.inductiveautomation.com/t/serializationexception-error-during-serialization-for-property-contentpane-on-object-fpmiwindow-testwindow/81336/3 "2023-11-02T15:39:56Z")
Yes that's correct ---
**Author:** ![Tyler\_Dolan](https://avatars.discourse-cdn.com/v4/letter/t/b5ac83/32.png) [@Tyler\_Dolan](https://forum.inductiveautomation.com/u/Tyler_Dolan)\ **Post date:** [November 2, 2023, 4:31pm UTC](https://forum.inductiveautomation.com/t/serializationexception-error-during-serialization-for-property-contentpane-on-object-fpmiwindow-testwindow/81336/4 "2023-11-02T16:31:12Z")
It looks like this error happens when I try to save any other pre-existing window as well. ---
**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\ **Post date:** [February 5, 2024, 5:12pm UTC](https://forum.inductiveautomation.com/t/serializationexception-error-during-serialization-for-property-contentpane-on-object-fpmiwindow-testwindow/81336/5 "2024-02-05T17:12:58Z")
I've seen this issue on edge vision templates for years. Restart the edge gateway and it usually clears.