# Task MAIN: Fatal runtime error

**URL:** <https://tech-community.robotics.abb.com/t/task-main-fatal-runtime-error/824>\
**Category:** RobotStudio S4\
**Created:** [August 25, 2006, 10:06am UTC](https://tech-community.robotics.abb.com/t/task-main-fatal-runtime-error/824 "2006-08-25T10:06:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![system](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/system/32/6_2.png) [@system](https://tech-community.robotics.abb.com/u/system)\
**Post date:** [August 25, 2006, 10:06am UTC](https://tech-community.robotics.abb.com/t/task-main-fatal-runtime-error/824/1 "2006-08-25T10:06:36Z")

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hi

I get this message when executing the path with VC and Collision set.

What does it meen???

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**Author:** ![Anders\_S](https://avatars.discourse-cdn.com/v4/letter/a/ce7236/32.png) [@Anders\_S](https://tech-community.robotics.abb.com/u/Anders_S)\
**Post date:** [August 31, 2006, 9:18am UTC](https://tech-community.robotics.abb.com/t/task-main-fatal-runtime-error/824/2 "2006-08-31T09:18:32Z")

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Hi,

That message indicates that something is wrong in your rapid program. Open the TeachPendant or ProgramMaker and control that you don’t have any syntax or reference errors.

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**Author:** ![seekhust](https://avatars.discourse-cdn.com/v4/letter/s/b3f665/32.png) [@seekhust](https://tech-community.robotics.abb.com/u/seekhust)\
**Post date:** [September 13, 2006, 4:40am UTC](https://tech-community.robotics.abb.com/t/task-main-fatal-runtime-error/824/3 "2006-09-13T04:40:55Z")

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Sometimes,You should shut down the VC and restart it.

It will work again.

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<div class="post-metadata">

**Author:** ![system](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/system/32/6_2.png) [@system](https://tech-community.robotics.abb.com/u/system)\
**Post date:** [September 15, 2006, 8:57am UTC](https://tech-community.robotics.abb.com/t/task-main-fatal-runtime-error/824/4 "2006-09-15T08:57:55Z")

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Hi

I have looked in program maker and there are no syntax errors.i have also shut down and restartet vc but still with the same result.

it seems that it is not always at the same place this error pops up.