# Problem installing node-red-contrib-aedes
**URL:** https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511
**Category:** FlowFuse
**Created:** [5 August 2025 10:47 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511 "2025-08-05T10:47:48Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@raffaele](https://discourse.nodered.org/u/raffaele)
#### Post date: [5 August 2025 10:47 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/1 "2025-08-05T10:47:49Z")
Hi All,
I had problems on flowfuse when I try to install node-red-contrib-aedes from Palette Manager.
On Logs I see following errors:
`[node-red-contrib-aedes/aedes-mqtt-broker] Error: Cannot find module 'webidl-conversions' Require stack: - /data/node_modules/whatwg-url/lib/URL.js - /data/node_modules/whatwg-url/webidl2js-wrapper.js - /data/node_modules/whatwg-url/index.js - /data/node_modules/mongodb-connection-string-url/lib/index.js - /data/node_modules/mongodb/lib/connection_string.js - /data/node_modules/mongodb/lib/mongo_client.js - /data/node_modules/mongodb/lib/change_stream.js - /data/node_modules/mongodb/lib/index.js - /data/node_modules/aedes-persistence-mongodb/asyncPersistence.js - /data/node_modules/aedes-persistence-mongodb/persistence.js - /data/node_modules/node-red-contrib-aedes/aedes.js - /usr/src/node-red/node_modules/@node-red/registry/lib/loader.js - /usr/src/node-red/node_modules/@node-red/registry/lib/index.js - /usr/src/node-red/node_modules/@node-red/runtime/lib/nodes/index.js - /usr/src/node-red/node_modules/@node-red/runtime/lib/index.js - /usr/src/node-red/node_modules/node-red/lib/red.js - /usr/src/node-red/node_modules/node-red/red.js`
I try also to remove from Manage Palette but I have the error:
Unrecognised module: node-red-contrib-aedes
Thanks for suggestion.
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [5 August 2025 13:26 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/2 "2025-08-05T13:26:07Z")
node-red-contrib-aedes requires MongoDB by the looks of it - not sure that will be available in FlowFuse?
Probably best to change the category for this to FlowFuse so that one of the staff comments on it.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [5 August 2025 14:17 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/3 "2025-08-05T14:17:26Z")
Doesn't flowfuse provide an MQTT broker for you? I don't use flowfuse but I thought that MQTT was integral to its use.
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### Author:  [@cymplecy](https://discourse.nodered.org/u/cymplecy)
#### Post date: [5 August 2025 14:18 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/4 "2025-08-05T14:18:34Z")
It doesn't require Mongo DB. You only need it if you want to use retained topics
[edit]
Well, it’s never been needed when I’ve installed it in the past but maybe something has changed 🙂
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [5 August 2025 15:16 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/5 "2025-08-05T15:16:22Z")
> [@raffaele](#):
>
> whatwg-url
This is the module that requires `webidl-conversions` so something is quite off.
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### Author:  [@GogoVega](https://discourse.nodered.org/u/GogoVega)
#### Post date: [5 August 2025 15:23 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/6 "2025-08-05T15:23:17Z")
However, I forgot to ask if the FF instance is cloud? Because it won't work.
> [@Colin](#):
>
> Doesn't flowfuse provide an MQTT broker for you?
It's a pro/enterprise feature.
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### Author:  [@raffaele](https://discourse.nodered.org/u/raffaele)
#### Post date: [5 August 2025 15:54 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/7 "2025-08-05T15:54:34Z")
After install node-red-contrib-mongodb4, remove the previous installation of node-red-contrib-aedes and re-install node-red-contrib-aedes the node is installed.
Now is working fine.
Thanks at all
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [19 August 2025 15:54 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-aedes/98511/8 "2025-08-19T15:54:45Z")
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