# ReferenceError: node is not defined

**URL:** <https://discourse.nodered.org/t/referenceerror-node-is-not-defined/8523>\
**Category:** General\
**Created:** [2 March 2019 09:17 UTC](https://discourse.nodered.org/t/referenceerror-node-is-not-defined/8523 "2019-03-02T09:17:09Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Samuel](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Samuel](https://discourse.nodered.org/u/Samuel)\
**Post date:** [2 March 2019 09:17 UTC](https://discourse.nodered.org/t/referenceerror-node-is-not-defined/8523/1 "2019-03-02T09:17:09Z")

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hi guys,

yesterday I have made a fatal mistake which broke my node red (again ☹ ).

I have copied couple of nodes between two machines running node red.

unfortunately this broke node red and removing npm, node js, deleted home folder and reinstalling everything (but not wiping system completely) didn't help.

basically there must be a reference to a sensor saved somewhere on the system and it keeps remembering that sensor ID and every time, even after reinstalling NR gives this error:

ReferenceError: node is not defined

and in console im getting this: Mar 10:15:05 - [error] [xiaomi-ht:testu] ReferenceError: node is not defined

is there a way of completely wiping all stuff node-red related so i can start fresh without wiping the system?

thank you

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_[View the full topic](https://discourse.nodered.org/t/referenceerror-node-is-not-defined/8523)._