# Error Troubleshooting

**URL:** <https://forum.inductiveautomation.com/t/error-troubleshooting/10834>\
**Category:** Ignition\
**Created:** [November 26, 2015, 8:08pm UTC](https://forum.inductiveautomation.com/t/error-troubleshooting/10834 "2015-11-26T20:08:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tlc](https://avatars.discourse-cdn.com/v4/letter/t/a4c791/32.png) [@tlc](https://forum.inductiveautomation.com/u/tlc)\
**Post date:** [November 26, 2015, 8:08pm UTC](https://forum.inductiveautomation.com/t/error-troubleshooting/10834/1 "2015-11-26T20:08:58Z")

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We have 17 pop up screens with the same one always having an error when initially opened. It states “Error. Component name ‘-1’ is invalid, it is either non unique, reserved, or has an illegal character.” Is there a way of troubleshooting or pinpointing what is causing this error on the pop up screen?  
Ignition version 7.7.3