Hello,
I wanted to connect my Raspberry 4, I followed all the instructions here: Raspberry Pi 4 | Edge Impulse Documentation
however I get an error while trying edge-impulse-linux
I also searched on the forum, but no success. Any ideas what could be wrong? I don’t have any experience with nodejs thus it’s quite hard for me to debug.
thank you in advance!
Hi @kasik,
You could try installing node-fetch to see if that works: npm i node-fetch
If that doesn’t work, you may need to pin your version of NodeJS to v14, v16, or v20. Please see this post for more information: RPI 4 device requires latest version of node.js which is not supported on platform
I just installed a clean RaspiOS 64-bit Bullseye using Raspberry Pi Imager. Then followed the instructions from: Raspberry Pi 4 | Edge Impulse Documentation
I got the same `Error: Cannot find module ‘node-fetch’ error.
Tried installing node-fetch directly per above with npm i node-fetch and got the same error.
Then I followed RPI 4 device requires latest version of node.js which is not supported on platform - #2 by Eoin and installed NVM from their github. Then per the suggestion, pinned Node to v14 (from 16). Still getting the same error.
Got the same errors on 64-bit bookworm install as well (which I expected). I also reinstalled on Bullseye, per above.
Full error:
Error: Cannot find module 'node-fetch'
Require stack:
- /usr/lib/node_modules/edge-impulse-linux/build/cli/make-image.js
- /usr/lib/node_modules/edge-impulse-linux/build/cli/linux/linux.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:931:15)
at Function.Module._load (internal/modules/cjs/loader.js:774:27)
at Module.require (internal/modules/cjs/loader.js:1003:19)
at require (internal/modules/cjs/helpers.js:107:18)
at Object.<anonymous> (/usr/lib/node_modules/edge-impulse-linux/build/cli/make-image.js:8:38)
at Module._compile (internal/modules/cjs/loader.js:1114:14)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1143:10)
at Module.load (internal/modules/cjs/loader.js:979:32)
at Function.Module._load (internal/modules/cjs/loader.js:819:12)
at Module.require (internal/modules/cjs/loader.js:1003:19) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'/usr/lib/node_modules/edge-impulse-linux/build/cli/make-image.js',
'/usr/lib/node_modules/edge-impulse-linux/build/cli/linux/linux.js'
]
}
edge-impuilse-linux requires Node v16 or later.
Please note that if you’re using NVM and also following our Raspberry Pi 4 documentation then you may end up with multiple/conflicting Node in your system.
To confirm which Node you are running, can you run:
which node
node --version
If you have don’t the right Node. Please clean up any other node installation and install the right version of Node as mentioned above.
Then uninstall edge-impulse-linux
npm uninstall -g edge-impulse-linux
npm prune
Then install edge-impulse-linux. Then confirm you have v1.8.2.
edge-impulse-linux-runner --version
Noticed I used edge-impulse-linux-runner above and not edge-impulse-linux. edge-impulse-linux command is broken in v1.8.1. If you have v1.8.2 then edge-impulse-linux command will also work.
edge-impulse-linux --version
I hope that helps.
// Raul
Thanks, Raul.
Above, @shawn_edgeimpulse suggested pinning to v14, v16 or v20. As I mentioned, I started with v16 and then installed nvm manager to be able to switch to 14. Had v16 worked, I would not have installed NVM separately.
Going back to a fresh install…
corey@PiFour:~ $ node --version
v16.20.2
corey@CKPiFour:~ $ edge-impulse-linux-runner --version
1.8.0
corey@CKPiFour:~ $ edge-impulse-linux --version
1.8.0
Running edge-impulse-linux-runner failed.
corey@CKPiFour:~ $ edge-impulse-linux-runner
Edge Impulse Linux runner v1.8.0
? What is your user name or e-mail address (edgeimpulse.com)? xxxxx
? What is your password? [hidden]
[RUN] Downloading model...
[RUN] Failed to run impulse Missing impulse
Uninstalled, prune, then reinstalled edge-impulse-linux. Rebooted.
corey@CKPiFour:~ $ edge-impulse-linux --version
1.8.0
corey@CKPiFour:~ $ edge-impulse-linux-runner --version
1.8.0
corey@CKPiFour:~ $ edge-impulse-linux-runner
Edge Impulse Linux runner v1.8.0
[RUN] Downloading model...
[RUN] Failed to run impulse Missing impulse
corey@CKPiFour:~ $ edge-impulse-linux
Edge Impulse Linux client v1.8.0
[GST] checking for /etc/os-release
[SER] Using microphone hw:0,0
Failed to initialize linux tool Error: Cannot find any webcams, run this command with --disable-camera to skip selection
at /usr/lib/node_modules/edge-impulse-linux/build/cli/linux/linux.js:444:23
corey@CKPiFour:~ $ edge-impulse-linux --disable-camera
Edge Impulse Linux client v1.8.0
[SER] Using microphone hw:0,0
[WS ] Connecting to wss://remote-mgmt.edgeimpulse.com
[WS ] Connected to wss://remote-mgmt.edgeimpulse.com
[WS ] Device "CKPi4" is now connected to project "RadarPi".
So I’m still not sure how to update to 1.8.2, but at least it connects. Still doesn’t with edge-impulse-linux-runner. And will need to figure out how to run with the camera, though.
corey@CKPiFour:~ $ edge-impulse-linux-runner
Edge Impulse Linux runner v1.8.0
[RUN] Downloading model...
[RUN] Failed to run impulse Missing impulse
Great @ckronengold
It looks like edge-impulse-linux tool is is not throwing the previous error.
The issue with the camera on rpi 4 (on bookworm). We’re working on adding support for RPI 4 on bookworm.
// Raul
I see. It appears that’s a newer Debian Bullseye version that we origianlly supported. I’ll take a look next week and keep you posted.
// Raul
Thanks a lot! It works now 
With edge-impulse-linux-runner --version 1.8.4 and python3 --version Python 3.9.2, I am now up and running.
Would love to see an updated “how to” page for new users so they don’t need to search through 4 different threads to get started.
@ckronengold I’m glad it works for you.
Thank you for your feedback.
Please visit our Raspberry Pi 4 documentation page and let us know if there’s anything missing. Your feedback is welcome.
