# error while adding controller.

**URL:** <https://tech-community.robotics.abb.com/t/error-while-adding-controller/11267>\
**Category:** OmniCore\
**Created:** [October 18, 2023, 12:45pm UTC](https://tech-community.robotics.abb.com/t/error-while-adding-controller/11267 "2023-10-18T12:45:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![shivendra\_singh](https://avatars.discourse-cdn.com/v4/letter/s/a9adbd/32.png) [@shivendra\_singh](https://tech-community.robotics.abb.com/u/shivendra_singh)\
**Post date:** [October 18, 2023, 12:45pm UTC](https://tech-community.robotics.abb.com/t/error-while-adding-controller/11267/1 "2023-10-18T12:45:06Z")

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Hi,

I have installed latest version of robot studio (2023.2.1) but while adding controller to it showing error (There is error while starting the controller).

This problem is coming only while adding Omni Core controller (Robot Ware 7.10.0 & 7.10.1 both)

IRC5 controller (Robot Ware 6.15.03 &above) getting add and start without any problem only.

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<div class="post-metadata">

**Author:** ![Braap](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/braap/32/2544_2.png) [@Braap](https://tech-community.robotics.abb.com/u/Braap)\
**Post date:** [October 19, 2023, 7:15am UTC](https://tech-community.robotics.abb.com/t/error-while-adding-controller/11267/2 "2023-10-19T07:15:43Z")

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Hey, did u install the Flexpendant SxTPU4 also? I had this problem that the Controller wouldnt start up in Simulation without this addin.