# error 40084 task main reference to unknown data

**URL:** <https://tech-community.robotics.abb.com/t/error-40084-task-main-reference-to-unknown-data/8148>\
**Category:** RobotStudio S4\
**Created:** [March 21, 2018, 10:23am UTC](https://tech-community.robotics.abb.com/t/error-40084-task-main-reference-to-unknown-data/8148 "2018-03-21T10:23:44Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ecem](https://avatars.discourse-cdn.com/v4/letter/e/f6c823/32.png) [@ecem](https://tech-community.robotics.abb.com/u/ecem)\
**Post date:** [March 21, 2018, 10:23am UTC](https://tech-community.robotics.abb.com/t/error-40084-task-main-reference-to-unknown-data/8148/1 "2018-03-21T10:23:44Z")

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Hello there s4 1400-2338 I am using this robot I am giving this error  
Do you have any information  
error 40084 task main reference what can I do to do what is unknown

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<div class="post-metadata">

**Author:** ![ecem](https://avatars.discourse-cdn.com/v4/letter/e/f6c823/32.png) [@ecem](https://tech-community.robotics.abb.com/u/ecem)\
**Post date:** [March 23, 2018, 7:31am UTC](https://tech-community.robotics.abb.com/t/error-40084-task-main-reference-to-unknown-data/8148/2 "2018-03-23T07:31:57Z")

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```auto
there is no one to help

```

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<div class="post-metadata">

**Author:** ![soup](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/soup/32/1592_2.png) [@soup](https://tech-community.robotics.abb.com/u/soup)\
**Post date:** [March 23, 2018, 1:05pm UTC](https://tech-community.robotics.abb.com/t/error-40084-task-main-reference-to-unknown-data/8148/3 "2018-03-23T13:05:51Z")

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What’s the full error message?

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<div class="post-metadata">

**Author:** ![ecem](https://avatars.discourse-cdn.com/v4/letter/e/f6c823/32.png) [@ecem](https://tech-community.robotics.abb.com/u/ecem)\
**Post date:** [March 26, 2018, 1:10pm UTC](https://tech-community.robotics.abb.com/t/error-40084-task-main-reference-to-unknown-data/8148/4 "2018-03-26T13:10:22Z")

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40084 hata kodu  
task main :reference to unknownentire data

no data ( or other objet )with the specified name is visible from this program position