# Flows stopped due to... ui\_base
**URL:** https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265
**Category:** General
**Created:** [13 January 2020 14:48 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265 "2020-01-13T14:48:07Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Andres](https://discourse.nodered.org/u/Andres)
#### Post date: [13 January 2020 14:48 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/1 "2020-01-13T14:48:07Z")
Hello everyone, i have this error from nr and i can't get it to work, what does it means and how can i solve it?
Flows stopped due to missing node types.
- ui\_base
i've tryed [this](https://discourse.nodered.org/t/how-to-uninstall-node-red/19135/2) but when i reintall nr it keeps showing me everything. What could it be?
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### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [13 January 2020 14:56 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/2 "2020-01-13T14:56:22Z")
Hi @Andres
it usually means you have installed a module such as `node-red-contrib-ui` that clashes with `node-red-dashboard`.
Have you installed any other dashboard-related modules recently? Check the node-red log on startup for any errors related to conflicting modules.
The fix will be to uninstall that module causing the conflict.
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### Author:  [@Andres](https://discourse.nodered.org/u/Andres)
#### Post date: [13 January 2020 15:02 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/3 "2020-01-13T15:02:21Z")
i understand, but i didn't install anything, just messed with the users of my pc. i'll check for any of those!
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### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [13 January 2020 15:05 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/4 "2020-01-13T15:05:10Z")
In which case, you might not have `node-red-dashboard` installed at all. That would be something to check.
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [13 January 2020 15:47 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/5 "2020-01-13T15:47:56Z")
What level of node.js are you using ?
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### Author:  [@Andres](https://discourse.nodered.org/u/Andres)
#### Post date: [13 January 2020 16:30 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/6 "2020-01-13T16:30:21Z")
@knolleary i have it, although i didn't use it on my implementation, at least i used to.
@dceejay i have v6.17.1, i'm ussing an older version of nr v0.20.6
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [13 January 2020 20:00 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-ui-base/20265/7 "2020-01-13T20:00:08Z")
Latest dashboard requires node.js v8 or more recent LTS.... As both 6 and 8 are no longer receiving security fixes I would recommend 10 or 12.