# Unable to open window in Ignition Designer v8.1.31 **URL:** \ **Category:** Ignition\ **Tags:** vision\ **Created:** [November 3, 2023, 12:03pm UTC](https://forum.inductiveautomation.com/t/unable-to-open-window-in-ignition-designer-v8-1-31/81457 "2023-11-03T12:03:25Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![George\_Billings](https://avatars.discourse-cdn.com/v4/letter/g/a4c791/32.png) [@George\_Billings](https://forum.inductiveautomation.com/u/George_Billings)\ **Post date:** [November 3, 2023, 12:03pm UTC](https://forum.inductiveautomation.com/t/unable-to-open-window-in-ignition-designer-v8-1-31/81457/1 "2023-11-03T12:03:25Z")
Hello, I an unable to open one window in vision. It pops up this: "SerializationException: Error deserializing element "" caused by IllegalArgumentException: Start point cannot equal endpoint" Any help with this would be greatly appreciated. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [November 3, 2023, 12:06pm UTC](https://forum.inductiveautomation.com/t/unable-to-open-window-in-ignition-designer-v8-1-31/81457/2 "2023-11-03T12:06:58Z")
Can you provide the full error / stack trace if there is one? There's usually a lot more error information available. That said, this is usually the kind of thing you need to open a ticket with support for. They can take your gateway backup / project export / window export / etc... and try to "rescue" the window if necessary. ---
**Author:** ![George\_Billings](https://avatars.discourse-cdn.com/v4/letter/g/a4c791/32.png) [@George\_Billings](https://forum.inductiveautomation.com/u/George_Billings)\ **Post date:** [November 3, 2023, 12:14pm UTC](https://forum.inductiveautomation.com/t/unable-to-open-window-in-ignition-designer-v8-1-31/81457/3 "2023-11-03T12:14:30Z")
Not for sure if this is what you were looking for, but this is from the copy error button: com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Error deserializing element "" at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.createException(XMLDeserializer.java:1005) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.createException(XMLDeserializer.java:966) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.onElementEnd(XMLDeserializer.java:935) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:165) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.readElement(BinaryParser.java:157) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.BinaryParser.parse(BinaryParser.java:51) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer.deserializeBinary(XMLDeserializer.java:367) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer.deserialize(XMLDeserializer.java:277) at com.inductiveautomation.factorypmi.application.model.WindowCache.\_deserializeWindow(WindowCache.java:387) at com.inductiveautomation.factorypmi.application.model.WindowCache.\_loadWindow(WindowCache.java:330) at com.inductiveautomation.factorypmi.application.model.WindowCache.openWindow(WindowCache.java:304) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace$DesigntimeWindowOpener.openWindow(WindowWorkspace.java:3867) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.openWindow(WindowWorkspace.java:1528) at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace$4.lambda$createPanels$2(WindowWorkspace.java:630) at com.inductiveautomation.ignition.designer.workspacewelcome.RecentlyModifiedTilePanel$Tile.lambda$new$1(RecentlyModifiedTilePanel.java:206) at com.inductiveautomation.ignition.client.util.gui.Listen$1.mousePressed(Listen.java:52) at java.desktop/java.awt.AWTEventMulticaster.mousePressed(Unknown Source) at java.desktop/java.awt.Component.processMouseEvent(Unknown Source) at java.desktop/javax.swing.JComponent.processMouseEvent(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.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(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: java.lang.IllegalArgumentException: Start point cannot equal endpoint at com.inductiveautomation.ignition.client.util.gui.paints.RelativeLinearGradientPaint.(RelativeLinearGradientPaint.java:99) at com.inductiveautomation.ignition.client.util.gui.paints.RelativeLinearGradientPaint.(RelativeLinearGradientPaint.java:54) at jdk.internal.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.handlers.ObjectDeserializationHandler.endSubElement(ObjectDeserializationHandler.java:65) at com.inductiveautomation.ignition.common.xmlserialization.deserialization.XMLDeserializer$ParseContext.onElementEnd(XMLDeserializer.java:932) ... 54 more Ignition v8.1.31 (b2023081007) Java: Azul Systems, Inc. 11.0.18 ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [November 3, 2023, 12:18pm UTC](https://forum.inductiveautomation.com/t/unable-to-open-window-in-ignition-designer-v8-1-31/81457/4 "2023-11-03T12:18:15Z")
Yes, this has the additional info necessary. ```auto Caused by: java.lang.IllegalArgumentException: Start point cannot equal endpoint at com.inductiveautomation.ignition.client.util.gui.paints.RelativeLinearGradientPaint.(RelativeLinearGradientPaint.java:99) at com.inductiveautomation.ignition.client.util.gui.paints.RelativeLinearGradientPaint.(RelativeLinearGradientPaint.java:54) ``` Unfortunately you will have to contact support to get this window "rescued" or at least get a bug ticket open. ---
**Author:** ![George\_Billings](https://avatars.discourse-cdn.com/v4/letter/g/a4c791/32.png) [@George\_Billings](https://forum.inductiveautomation.com/u/George_Billings)\ **Post date:** [November 3, 2023, 12:18pm UTC](https://forum.inductiveautomation.com/t/unable-to-open-window-in-ignition-designer-v8-1-31/81457/5 "2023-11-03T12:18:55Z")
Thank you for you help!