# \[bug-355\]GatewayException: Unable to decode arguments **URL:** \ **Category:** Ignition\ **Created:** [August 27, 2020, 12:56am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110 "2020-08-27T00:56:16Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![DonMayville](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@DonMayville](https://forum.inductiveautomation.com/u/DonMayville)\ **Post date:** [August 27, 2020, 12:56am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/1 "2020-08-27T00:56:16Z")
It fails due to the datetime. This work in earlier versions for years but when i upgraded to the newest version this no longer works. If I take the StartDate out the query writes to the DB fine. I have tried converting to string, framing with % , ‘, ", and using CAST(N’. Here is the query: system.db.runPrepUpdate(INSERT INTO tblResourceEvents (ItemID, StartDate, Label, Foreground, Background, PctDone, EventType) VALUES (?,?,?,?,?,?,?), [1, 2020-10-30 19:59:59.0, 111111 : $??? : MyCust, color(0,0,0,255), color(255,255,255,255), 0, Task], DBEvents, , false, false) I need to pass the datetime in a query. Anyone have an idea? ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [August 27, 2020, 1:59pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/2 "2020-08-27T13:59:15Z")
Are you passing an actual date object, or some string literal? If the latter, try parsing into a Java Date object before sending it through the query: [https://docs.inductiveautomation.com/display/DOC80/system.date.parse](https://docs.inductiveautomation.com/display/DOC80/system.date.parse) Any actual stack trace or the rest of your code would be helpful, also. ---
**Author:** ![DonMayville](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@DonMayville](https://forum.inductiveautomation.com/u/DonMayville)\ **Post date:** [August 28, 2020, 5:28pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/3 "2020-08-28T17:28:34Z")
that shown is the result after the variables were resolved. I am passing a java date variable in the actual call, Traceback (most recent call last): File “event:mouseReleased”, line 53, in java.lang.Exception: java.lang.Exception: Error executing system.db.runPrepUpdate(INSERT INTO ResourceEvent (ItemID, StartDate, Label, Foreground, Background, PctDone, EventType) VALUES (?,?,?,?,?,?,?), [1, 2020-10-23 19:59:59.0, 111111 : $??? : MyCustomer, color(0,0,0,255), color(255,255,255,255), 0, Task], MyDB, , false, false) ``` caused by Exception: Error executing system.db.runPrepUpdate(INSERT INTO ResourceEvent (ItemID, StartDate, Label, Foreground, Background, PctDone, EventType) VALUES (?,?,?,?,?,?,?), [1, 2020-10-23 19:59:59.0, 111111 : $???? : MyCustomer, color(0,0,0,255), color(255,255,255,255), 0, Task], MyDB, , false, false) caused by GatewayException: Unable to decode arguments caused by InvalidClassException: failed to read class descriptor ``` Ignition v8.0.16 (b2020082513) Java: Azul Systems, Inc. 11.0.7 ---
**Author:** ![cristihcd](https://avatars.discourse-cdn.com/v4/letter/c/7bcc69/32.png) [@cristihcd](https://forum.inductiveautomation.com/u/cristihcd)\ **Post date:** [September 1, 2020, 11:35am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/4 "2020-09-01T11:35:40Z")
I have the same issue (v8.0.16) running this: ```auto db = 'dbname' job_type = 'formula' user_name = system.security.getUsername() user_id = system.user.getUser("", user_name).getId() job_id = system.db.runPrepUpdate('INSERT INTO jobs (ok_to_start, job_type, user_id) VALUES (?, ?, ?);',[0, job_type, user_id], database=db, getKey=1) ``` ```auto Traceback (most recent call last): File "", line 124, in java.lang.Exception: java.lang.Exception: Error executing system.db.runPrepUpdate(INSERT INTO jobs (ok_to_start, job_type, user_id) VALUES (?, ?, ?);, [0, formula, 1], dbname, , true, false) caused by Exception: Error executing system.db.runPrepUpdate(INSERT INTO jobs (ok_to_start, job_type, user_id) VALUES (?, ?, ?);, [0, formula, 1], dbname, , true, false) caused by GatewayException: Unable to decode arguments caused by InvalidClassException: failed to read class descriptor Ignition v8.0.16 (b2020082513) Java: Azul Systems, Inc. 11.0.7 ``` Full trace: [https://pastebin.com/1W88KZ6b](https://pastebin.com/1W88KZ6b) ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [September 1, 2020, 3:03pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/5 "2020-09-01T15:03:58Z")
Ah, the full stack trace is helpful. I have a hunch what’s going on here, I’ll file an internal ticket. ---
**Author:** ![jasoncoope](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jasoncoope/32/18674_2.png) [@jasoncoope](https://forum.inductiveautomation.com/u/jasoncoope)\ **Post date:** [September 1, 2020, 10:41pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/6 "2020-09-01T22:41:39Z")
Please share the hunch. i’m running into the same issue in multiple places on a production server since updating to 8.0.16 from 15. I have had to wrap the value 1 in an int() in one place and now have where fifteen parameters that are being passed are failing. If there is a work-around, I’ll take it, otherwise were rolling back. 15:34:39.080 [AWT-EventQueue-0] ERROR Vision.Components.AdvancedTable - Error invoking extension method. org.python.core.PyException: Traceback (most recent call last): File “”, line 53, in onCellEdited File “module:shared.Kanoa.WIP”, line 242, in updateLineProductionData File “module:shared.Kanoa.WIP”, line 1212, in writeLineProductionInfoToTable INSERT INTO lineProductionData (lineType, modeColor, Site, Area, Validated, [Equipment Path], [Equipment Name], [Equipment Mode Name], [Equipment Mode Type], [Work Order], [Product Code], [Mode Begin Time], [Mode End Time], [Mode Duration], [OEE Infeed Count], [Infeed Rate], Target, Units, [Rate Efficiency], [First Quality], [Quality Status], [OEE Outfeed Count], [OEE Reject Count], [Unplanned Downtime], [Line Downtime Occurrence Count]) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?) , [Batch, #00FF00, Conway, Resin, true, Chemical\Conway\Resin\Reactor K1, Reactor K1, Production, Production, 0003162586, RPPD2378, Fri Jan 03 15:35:01 PST 2020, Fri Jan 03 23:04:30 PST 2020, 7.491388888888889, , , 6.710000038146973, Hr, 0.8956950306892395, 1.0, Approved, 45001, , ,], IGN\_CUSTOM, , true, false) at com.inductiveautomation.ignition.common.script.builtin.AbstractDBUtilities.error(AbstractDBUtilities.java:362) at com.inductiveautomation.ignition.common.script.builtin.AbstractDBUtilities.runPrepUpdate(AbstractDBUtilities.java:258) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) java.lang.Exception: java.lang.Exception: Error executing system.db.runPrepUpdate( INSERT INTO lineProductionData (lineType, modeColor, Site, Area, Validated, [Equipment Path], [Equipment Name], [Equipment Mode Name], [Equipment Mode Type], [Work Order], [Product Code], [Mode Begin Time], [Mode End Time], [Mode Duration], [OEE Infeed Count], [Infeed Rate], Target, Units, [Rate Efficiency], [First Quality], [Quality Status], [OEE Outfeed Count], [OEE Reject Count], [Unplanned Downtime], [Line Downtime Occurrence Count]) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?) , [Batch, #00FF00, Conway, Resin, true, Chemical\Conway\Resin\Reactor K1, Reactor K1, Production, Production, 0003162586, RPPD2378, Fri Jan 03 15:35:01 PST 2020, Fri Jan 03 23:04:30 PST 2020, 7.491388888888889, , , 6.710000038146973, Hr, 0.8956950306892395, 1.0, Approved, 45001, , ,], IGN\_CUSTOM, , true, false) ``` at org.python.core.Py.JavaError(Py.java:552) at com.inductiveautomation.ignition.common.script.builtin.AbstractDBUtilities.error(AbstractDBUtilities.java:362) at com.inductiveautomation.ignition.common.script.builtin.AbstractDBUtilities.runPrepUpdate(AbstractDBUtilities.java:258) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:188) at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction. __call__ (ScriptManager.java:524) at org.python.core.PyObject. __call__ (PyObject.java:413) at org.python.pycode._pyx284.writeLineProductionInfoToTable$19(:1223) at org.python.pycode._pyx284.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:171) at org.python.core.PyBaseCode.call(PyBaseCode.java:139) at org.python.core.PyFunction. __call__ (PyFunction.java:413) at org.python.pycode._pyx284.updateLineProductionData$2(:248) at org.python.pycode._pyx284.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:171) at org.python.core.PyBaseCode.call(PyBaseCode.java:171) at org.python.core.PyFunction. __call__ (PyFunction.java:434) at org.python.pycode._pyx297.onCellEdited$1(:77) at org.python.pycode._pyx297.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:171) at org.python.core.PyBaseCode.call(PyBaseCode.java:308) at org.python.core.PyFunction.function ___call__ (PyFunction.java:471) at org.python.core.PyFunction. __call__ (PyFunction.java:466) at org.python.core.PyFunction. __call__ (PyFunction.java:456) at org.python.core.PyFunction. __call__ (PyFunction.java:451) at com.inductiveautomation.vision.api.client.components.model.ExtensionFunction.invoke(ExtensionFunction.java:151) at com.inductiveautomation.factorypmi.application.components.VisionAdvancedTable$Model.setValueAt(VisionAdvancedTable.java:1799) at com.jidesoft.grid.TableModelWrapperImpl.setValueAt(Unknown Source) at com.jidesoft.grid.DefaultTableModelWrapper.setValueAt(Unknown Source) at com.jidesoft.grid.TableModelWrapperImpl.setValueAt(Unknown Source) at com.jidesoft.grid.DefaultTableModelWrapper.setValueAt(Unknown Source) at java.desktop/javax.swing.JTable.setValueAt(Unknown Source) at com.jidesoft.grid.JideTable.editingStopped(Unknown Source) at java.desktop/javax.swing.AbstractCellEditor.fireEditingStopped(Unknown Source) at java.desktop/javax.swing.DefaultCellEditor$EditorDelegate.stopCellEditing(Unknown Source) at java.desktop/javax.swing.DefaultCellEditor.stopCellEditing(Unknown Source) at de.javasoft.plaf.synthetica.SyntheticaDefaultTableCellEditor.stopCellEditing(SyntheticaDefaultTableCellEditor.java:123) at java.desktop/javax.swing.DefaultCellEditor$EditorDelegate.actionPerformed(Unknown Source) at java.desktop/javax.swing.JTextField.fireActionPerformed(Unknown Source) at java.desktop/javax.swing.JTextField.postActionEvent(Unknown Source) at java.desktop/javax.swing.JTextField$NotifyAction.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.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: java.lang.Exception: Error executing system.db.runPrepUpdate( INSERT INTO lineProductionData (lineType, modeColor, Site, Area, Validated, [Equipment Path], [Equipment Name], [Equipment Mode Name], [Equipment Mode Type], [Work Order], [Product Code], [Mode Begin Time], [Mode End Time], [Mode Duration], [OEE Infeed Count], [Infeed Rate], Target, Units, [Rate Efficiency], [First Quality], [Quality Status], [OEE Outfeed Count], [OEE Reject Count], [Unplanned Downtime], [Line Downtime Occurrence Count]) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?) , [Batch, #00FF00, Conway, Resin, true, Chemical\Conway\Resin\Reactor K1, Reactor K1, Production, Production, 0003162586, RPPD2378, Fri Jan 03 15:35:01 PST 2020, Fri Jan 03 23:04:30 PST 2020, 7.491388888888889, , , 6.710000038146973, Hr, 0.8956950306892395, 1.0, Approved, 45001, , ,], IGN\_CUSTOM, , true, false) … 78 common frames omitted Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Unable to decode arguments at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:351) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:325) at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:278) at com.inductiveautomation.ignition.client.script.ClientDBUtilities.\_runPrepStmt(ClientDBUtilities.java:282) at com.inductiveautomation.ignition.common.script.builtin.AbstractDBUtilities.runPrepUpdate(AbstractDBUtilities.java:256) … 76 common frames omitted Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayResponse$GatewayThrowable: failed to read class descriptor at java.io.ObjectInputStream.readNonProxyDesc(null) at java.io.ObjectInputStream.readClassDesc(null) at java.io.ObjectInputStream.readOrdinaryObject(null) at java.io.ObjectInputStream.readObject0(null) at java.io.ObjectInputStream.readArray(null) at java.io.ObjectInputStream.readObject0(null) at java.io.ObjectInputStream.readObject(null) at java.io.ObjectInputStream.readObject(null) at com.inductiveautomation.ignition.common.Base64.decodeToObjectFragile(Base64.java:985) at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.RunPrepStmt.runUpdateQuery(RunPrepStmt.java:43) at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.AbstractUpdateQuery.run(AbstractUpdateQuery.java:25) at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.AbstractDBAction.invoke(AbstractDBAction.java:68) at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:86) at org.eclipse.jetty.servlet.ServletHolder$NotAsyncServlet.service(ServletHolder.java:1391) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:760) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:547) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:590) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:59) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:322) at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:59) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:500) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) at java.lang.Thread.run(null) ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [September 2, 2020, 12:26am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/7 "2020-09-02T00:26:15Z")
The hunch is that a security measure we put in to prevent a class of Java vulnerabilities (serialization/deserialization, specifically) has too strict of a whitelist, and is preventing legitimate classes from being sent from the client to the gateway. Unfortunately, since it’s internal to the gateway for security reasons, there’s probably no way to work around the issue. You could maybe try sending the arguments and query to the gateway using [`system.util.sendRequest`](https://docs.inductiveautomation.com/display/DOC80/system.util.sendRequest), but that probably won’t work, since the payload still has to end up getting serialized. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [September 2, 2020, 2:46am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/8 "2020-09-02T02:46:42Z")
That sounds like something that will break my database caching module, as it has a number of datatypes that need serialization in both directions. Is there a registry for the whitelist to support module RPC? If applicable? ( I haven’t had a chance to test 8.0.16 yet…) ---
**Author:** ![jasoncoope](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jasoncoope/32/18674_2.png) [@jasoncoope](https://forum.inductiveautomation.com/u/jasoncoope)\ **Post date:** [September 2, 2020, 1:22pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/9 "2020-09-02T13:22:29Z")
That’s the issue. I’ve moved the database script function calls to be in gateway scope via a tag change event. ---
**Author:** ![ryanjmclaughlin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryanjmclaughlin/32/4318_2.png) [@ryanjmclaughlin](https://forum.inductiveautomation.com/u/ryanjmclaughlin)\ **Post date:** [September 9, 2020, 2:10pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/10 "2020-09-09T14:10:29Z")
@paul-griffith Any update on this one? we are running into this as well and trying to know if we should work around or downgrade back to 8.0.15 ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [September 9, 2020, 3:13pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/11 "2020-09-09T15:13:53Z")
No update yet, but it’s a very high priority bug - will (almost) certainly be fixed in the next released version. ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [October 9, 2020, 12:49am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/12 "2020-10-09T00:49:08Z")
This is a serious issue for us, we have a dozen machines in commissioning being stalled. We updated to 8.0.14 because of stale tags that hasn’t been fixed: [Client Tags stay stale after connection is restored in Ignition 8.0.14](http://forum.inductiveautomation.com/t/client-tags-stay-stale-after-connection-is-restored-in-ignition-8-0-14/36927/7) We updated to 8.0.16 to get around the “gateway hangs when loading” bug We updated to 8.1rc2 to get away from this bug and have a new one: [8.1-rc2 Can't log in to designer](http://forum.inductiveautomation.com/t/8-1-rc2-cant-log-in-to-designer/39523) Now updating to nightly release… joy ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [October 9, 2020, 3:05pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/13 "2020-10-09T15:05:42Z")
This issue is fixed in 8.0.17, which will be the next version released after 8.1.0 final. ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [October 29, 2020, 12:41am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/15 "2020-10-29T00:41:14Z")
Is there an expected release date for this? Really hanging out for it, got some machines shipping in a few weeks. ---
**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:** [October 29, 2020, 1:04am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/16 "2020-10-29T01:04:52Z")
The 8.0.17 RC was released today and the final release is scheduled for Nov. 9. ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [November 2, 2020, 2:42am UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/17 "2020-11-02T02:42:09Z")
I guess this is the price for trying to be on the bleeding edge. The release candidate does not solve this issue… rolling back again… ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [November 5, 2020, 9:10pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/18 "2020-11-05T21:10:58Z")
Hi Kevin, do you have any news on this please? ---
**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 5, 2020, 9:20pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/19 "2020-11-05T21:20:06Z")
My understanding is that this will be part of the 8.0.17 release even though it wasn’t in the RC, and that it’s part of the 8.1.0 release that is available now. ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [November 5, 2020, 9:27pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/20 "2020-11-05T21:27:20Z")
Great, thanks Kevin ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [November 11, 2020, 10:11pm UTC](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110/21 "2020-11-11T22:11:18Z")
Hi Kevin, is there a revised release date for 8.0.17? Thanks. [Next page](https://forum.inductiveautomation.com/t/bug-355-gatewayexception-unable-to-decode-arguments/38110.md?page=2)