# \[BUG-13611\] Null string binding Error\_TypeConversion - FactoryTalk Linx Gateway

**URL:** <https://forum.inductiveautomation.com/t/bug-13611-null-string-binding-error-typeconversion-factorytalk-linx-gateway/24212>\
**Category:** Ignition Early Access\
**Created:** [April 17, 2019, 5:38pm UTC](https://forum.inductiveautomation.com/t/bug-13611-null-string-binding-error-typeconversion-factorytalk-linx-gateway/24212 "2019-04-17T17:38:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Walt](https://avatars.discourse-cdn.com/v4/letter/w/71e660/32.png) [@Walt](https://forum.inductiveautomation.com/u/Walt)\
**Post date:** [April 17, 2019, 5:38pm UTC](https://forum.inductiveautomation.com/t/bug-13611-null-string-binding-error-typeconversion-factorytalk-linx-gateway/24212/1 "2019-04-17T17:38:43Z")

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Using FT Linx Gateway for the UA Server. When reading a null string, the tag quality is fine. When binding a property like the Label.Text the Label.Quality is “Error\_TypeConversion.”

Accessing the same UA server with 7.9.9 has no error. Using Ignition UA Server has no error.  
Populating the tag so that it is not null also makes the error go away.

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**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 2, 2019, 8:44pm UTC](https://forum.inductiveautomation.com/t/bug-13611-null-string-binding-error-typeconversion-factorytalk-linx-gateway/24212/2 "2019-05-02T20:44:20Z")

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Thanks for the report - this is something we’re already tracking and working on internally.

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**Author:** ![lane.duncan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lane.duncan/32/83700_2.png) [@lane.duncan](https://forum.inductiveautomation.com/u/lane.duncan)\
**Post date:** [June 19, 2019, 8:05pm UTC](https://forum.inductiveautomation.com/t/bug-13611-null-string-binding-error-typeconversion-factorytalk-linx-gateway/24212/3 "2019-06-19T20:05:40Z")

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I am having the exact same issue after upgrading to 8.0.2 from 7.9. Big Red X’s all over the screen anywhere the PLC tag string length = 0. Adding a space to the blank strings (LEN=1) fixes the issue.

Any ideas on how to fix this?

Thanks,

Lane

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**Author:** ![awalker](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/awalker/32/6874_2.png) [@awalker](https://forum.inductiveautomation.com/u/awalker)\
**Post date:** [July 26, 2019, 9:25pm UTC](https://forum.inductiveautomation.com/t/bug-13611-null-string-binding-error-typeconversion-factorytalk-linx-gateway/24212/4 "2019-07-26T21:25:43Z")

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This issue is fixed in the 8.0.3RC2.