# Error in igntion classcatException **URL:** \ **Category:** Ignition\ **Tags:** vision, ignition81\ **Created:** [May 9, 2022, 5:50pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367 "2022-05-09T17:50:06Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Esmeralda\_Lopez](https://avatars.discourse-cdn.com/v4/letter/e/fbc32d/32.png) [@Esmeralda\_Lopez](https://forum.inductiveautomation.com/u/Esmeralda_Lopez)\ **Post date:** [May 9, 2022, 5:50pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367/1 "2022-05-09T17:50:06Z")
Hello, I got this error, thanks everyone ![16521182210639036708572266701992](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/2/1227c07e4d6882e4ff91582d99d2e8f38c11e564.jpeg) ---
**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:** [May 9, 2022, 5:52pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367/2 "2022-05-09T17:52:12Z")
Please click ‘Full’ and copy the _entire_ stacktrace to the forum and post it here inside a preformatted text blocked: ``` stacktrace ``‍` ---
**Author:** ![Esmeralda\_Lopez](https://avatars.discourse-cdn.com/v4/letter/e/fbc32d/32.png) [@Esmeralda\_Lopez](https://forum.inductiveautomation.com/u/Esmeralda_Lopez)\ **Post date:** [May 10, 2022, 1:55pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367/3 "2022-05-10T13:55:16Z")
```auto java.lang.ClassCastException: Error trying to coerce 'Connected' to a number. at com.inductiveautomation.ignition.common.TypeUtilities.toNumber(TypeUtilities.java:800) at com.inductiveautomation.ignition.common.TypeUtilities.coerce(TypeUtilities.java:1146) at com.inductiveautomation.factorypmi.application.binding.AbstractPropertyAdapter.setQValue(AbstractPropertyAdapter.java:223) at com.inductiveautomation.factorypmi.application.binding.SimpleBoundTagAdapter.setQValue(SimpleBoundTagAdapter.java:259) at com.inductiveautomation.factorypmi.application.binding.AbstractPropertyAdapter.updateValue(AbstractPropertyAdapter.java:269) at com.inductiveautomation.factorypmi.application.binding.SimpleBoundTagAdapter.notifyTagChanged(SimpleBoundTagAdapter.java:518) at com.inductiveautomation.factorypmi.application.binding.SimpleBoundTagAdapter.tagChanged(SimpleBoundTagAdapter.java:506) at com.inductiveautomation.ignition.client.tags.impl.ClientTagSubscriptionManager$ListenerDeliveryManager.edtDeliver(ClientTagSubscriptionManager.java:603) at java.desktop/java.awt.event.InvocationEvent.dispatch(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.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) Ignition v8.1.11 (b2021101912) Java: Azul Systems, Inc. 11.0.11 ``` ---
**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:** [May 10, 2022, 6:22pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367/4 "2022-05-10T18:22:25Z")
It looks like you have a _numeric_ property of a Vision component bound to a tag with a `string` value (`"Connected"`). Vision has no concept of “transforms”, so you’ll probably want to switch to e.g. an expression binding, using the `case` function: [https://docs.inductiveautomation.com/display/DOC81/case](https://docs.inductiveautomation.com/display/DOC81/case) ```auto case( {path/to/tag}, "Connected", 1, // if value is "Connected", return 1 "Faulted", 2, // if value is "Faulted", return 2 0 // if no matched value, return 0 ) ``` ---
**Author:** ![Esmeralda\_Lopez](https://avatars.discourse-cdn.com/v4/letter/e/fbc32d/32.png) [@Esmeralda\_Lopez](https://forum.inductiveautomation.com/u/Esmeralda_Lopez)\ **Post date:** [May 18, 2022, 4:11pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367/6 "2022-05-18T16:11:06Z")
Great,thanks but after // the conditions are part of the code or just comments? ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [May 18, 2022, 4:11pm UTC](https://forum.inductiveautomation.com/t/error-in-igntion-classcatexception/59367/7 "2022-05-18T16:11:56Z")
Those are comments.