# Error to Ramp number of users.

**URL:** <https://community.gatling.io/t/error-to-ramp-number-of-users/1026>\
**Category:** Gatling (Open-Source)\
**Created:** [May 13, 2014, 9:35am UTC](https://community.gatling.io/t/error-to-ramp-number-of-users/1026 "2014-05-13T09:35:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Amar\_Pawar](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Amar\_Pawar](https://community.gatling.io/u/Amar_Pawar)\
**Post date:** [May 13, 2014, 9:35am UTC](https://community.gatling.io/t/error-to-ramp-number-of-users/1026/1 "2014-05-13T09:35:06Z")

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Hi All  
I am trying to ramp 5 users out of 10, but facing some issues.

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**Author:** ![Excilys](https://avatars.discourse-cdn.com/v4/letter/e/8797f3/32.png) [@Excilys](https://community.gatling.io/u/Excilys)\
**Post date:** [May 13, 2014, 9:39am UTC](https://community.gatling.io/t/error-to-ramp-number-of-users/1026/2 "2014-05-13T09:39:17Z")

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> I am trying to ramp 5 users out of 10

Not what you’re doing: you’re starting 10 users at the same time, then try to ramp 5 users

> rampUsers(5)  
> Wrong. rampUsers expects a duration, eg rampUsers(5) over(10 seconds)

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<div class="post-metadata">

**Author:** ![Amar\_Pawar](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@Amar\_Pawar](https://community.gatling.io/u/Amar_Pawar)\
**Post date:** [May 13, 2014, 10:01am UTC](https://community.gatling.io/t/error-to-ramp-number-of-users/1026/3 "2014-05-13T10:01:45Z")

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Thanks.  
It worked for me.