# URCap works on a CB3.1, but not on an e-series

**URL:** <https://forum.universal-robots.com/t/urcap-works-on-a-cb3-1-but-not-on-an-e-series/3385>\
**Category:** URCaps SDK\
**Created:** [January 4, 2019, 9:51am UTC](https://forum.universal-robots.com/t/urcap-works-on-a-cb3-1-but-not-on-an-e-series/3385 "2019-01-04T09:51:34Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![sam.verity-hilton](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/sam.verity-hilton/32/6046_2.png) [@sam.verity-hilton](https://forum.universal-robots.com/u/sam.verity-hilton)\
**Post date:** [January 4, 2019, 2:08pm UTC](https://forum.universal-robots.com/t/urcap-works-on-a-cb3-1-but-not-on-an-e-series/3385/3 "2019-01-04T14:08:28Z")

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This was indeed the problem, my cap is built on SDK 1.4, but i was trying to deploy it on a simulation of a robot running 5.0, the equivalent software from 1.3.  
I downloaded 5.2 and it deploys just fine. Thanks

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