# Error Invoking (Screen doesn't open)

**URL:** <https://forum.inductiveautomation.com/t/error-invoking-screen-doesnt-open/16286>\
**Category:** Ignition\
**Created:** [December 11, 2017, 5:10pm UTC](https://forum.inductiveautomation.com/t/error-invoking-screen-doesnt-open/16286 "2017-12-11T17:10:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Campos\_04](https://avatars.discourse-cdn.com/v4/letter/c/f0a364/32.png) [@Campos\_04](https://forum.inductiveautomation.com/u/Campos_04)\
**Post date:** [December 11, 2017, 5:10pm UTC](https://forum.inductiveautomation.com/t/error-invoking-screen-doesnt-open/16286/1 "2017-12-11T17:10:44Z")

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I was working on this screen when a connection error with the server occur.  
After that asked me to retrive the project. Once I did’t the screen was frozen. The window was closed and when try to reopen the next error come out  
Message  
“Error Invoking [PMILabel]Label 4.setStyles (Dataset [2R X 5C])”  
Details  
"SerializationException: Error invoking [PMILabel]Label 4.setStyles(Dataset [2R ⅹ 5C])  
caused by InvocationTargetException  
caused by ClassCastException: Error trying to coerce ‘value 1’ to a number.

Ignition v7.9.5-rc1 (b2017103014)  
Java: Oracle Corporation 1.8.0\_151

Any idea how to solve this?