# Precess is not defined

**URL:** https://discourse.nodered.org/t/precess-is-not-defined/18614
**Category:** General
**Created:** [29 November 2019 15:13 UTC](https://discourse.nodered.org/t/precess-is-not-defined/18614 "2019-11-29T15:13:13Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![DemonKing](https://avatars.discourse-cdn.com/v4/letter/d/b4bc9f/32.png) [@DemonKing](https://discourse.nodered.org/u/DemonKing)
#### Post date: [29 November 2019 15:13 UTC](https://discourse.nodered.org/t/precess-is-not-defined/18614/1 "2019-11-29T15:13:13Z")

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when i try to execute this value on function

precess is not defined this error came

process.env.myvar = "abc"; -- i try this in my function

whats the problem there?

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### Author: ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [29 November 2019 15:17 UTC](https://discourse.nodered.org/t/precess-is-not-defined/18614/2 "2019-11-29T15:17:26Z")

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Please don't start a new topic when we're already discussing this.

> [@How to set env variable](https://discourse.nodered.org/t/how-to-set-env-varibale/18612):
>
> env.get() working but env.set() is not a function like flow.set(),global.set()ext, so please find me how to set env variable

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### Author: ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [29 November 2019 15:17 UTC](https://discourse.nodered.org/t/precess-is-not-defined/18614/3 "2019-11-29T15:17:29Z")

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