[Bug] Error: Command failed: cat /sys/class/net/ppp0/speed

[easonyen16]

Description of the bug

I am running dashdot from source.
After installing, I type in sudo -E yarn start to start it, it show the error

How to reproduce

sudo -E yarn start

Relevant log output

Version file not found. This is normal on from-source builds.
listening on *:3001
Multiple default network interfaces found [ppp0, eth0], using "ppp0"
Using default network interface "ppp0"
Using host os version from "/etc/os-release"
(node:1114655) UnhandledPromiseRejectionWarning: Error: Command failed: cat /sys/class/net/ppp0/speed
cat: /sys/class/net/ppp0/speed: Invalid argument
    at ChildProcess.exithandler (child_process.js:308:12)
    at ChildProcess.emit (events.js:314:20)
    at maybeClose (internal/child_process.js:1022:16)
    at Socket.<anonymous> (internal/child_process.js:444:11)
    at Socket.emit (events.js:314:20)
    at Pipe.<anonymous> (net.js:676:12)
(node:1114655) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:1114655) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate
the Node.js process with a non-zero exit code.

Info output of dashdot cli

INFO
=========
Yarn: 3.5.0
Node: v18.15.0
Dash: unknown
Cwd: /home/yanyixuan/dashdot
Hash: c6cb25447599a94fc7955b5ccb680a61d0c97d5e
In Docker: false
In Podman: false
In Docker (env):

What browsers are you seeing the problem on?

Chrome

Where is your instance running?

Raspberry Pi

Additional context

In my browsers it shows

[MauriceNino]

Hi there, can you by any chance post the output of this command:

route | grep '^default' | grep -o '[^ ]*$'

or

ip route get 8.8.8.8 | sed -n 's/.*dev \([^\ ]*\).*/\1/p'

---

If that doesn't work, please have a look at this StackExchange post for another method of finding out your main network interface.

What I suspect is that ppp0 is not your actual network interface and there is some weirdness happening.

[easonyen16]

yanyixuan@raspberrypi:~ $ route | grep '^default' | grep -o '[^ ]*$'
ppp0
eth0
yanyixuan@raspberrypi:~ $ ip route get 8.8.8.8 | sed -n 's/.*dev \([^\ ]*\).*/\1/p'
ppp0

[MauriceNino]

So I just pushed a new version on the dev branch, could you please try that out?

docker image pull mauricenino/dashdot:dev
docker container run -it --rm --privileged -v /:/mnt/host:ro -p 3002:3001 mauricenino/dashdot:dev

[MauriceNino]

@SuimgPhilip You are having similar issues, so could you please also try out that solution?

[easonyen16]

Thank you!
It can run now.

[github-actions]

🎉 This issue has been resolved in version 5.2.0

Please check the changelog for more details.

[SuimgPhilip]

@SuimgPhilip You are having similar issues, so could you please also try out that solution?

The problem is solved