# Error in output with builder

**URL:** <https://discourse.psychopy.org/t/error-in-output-with-builder/3775>\
**Category:** Builder\
**Created:** [January 19, 2018, 1:21pm UTC](https://discourse.psychopy.org/t/error-in-output-with-builder/3775 "2018-01-19T13:21:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Donna\_Marie](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/donna_marie/32/1980_2.png) [@Donna\_Marie](https://discourse.psychopy.org/u/Donna_Marie)\
**Post date:** [January 19, 2018, 1:21pm UTC](https://discourse.psychopy.org/t/error-in-output-with-builder/3775/1 "2018-01-19T13:21:57Z")

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I have set up a simple experiment using the builder, but whenever i try to run the experiment i get an error message with failed to download ‘avbin.lll try importing psychopy.visual’

How do i fix this?

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**Author:** ![Michael](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/michael/32/16_2.png) [@Michael](https://discourse.psychopy.org/u/Michael)\
**Post date:** [January 20, 2018, 7:26pm UTC](https://discourse.psychopy.org/t/error-in-output-with-builder/3775/2 "2018-01-20T19:26:16Z")

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Are you using movies in your experiment? If not, you can ignore this message.