Lots of issues when creating viam modules

[pseudo orchid]

Hello, i'm attempting to make an Artificial Intelligence assistant using my Raspberry pi 4B for my school project. And using sources online, I came across viam. I saw someone else use it, and saw it worked good. Now, i'm attempting to add my own modules to the viam platform, but I keep running into issues like:
- rdk.resource_manager.rdk:component:sensor/hcsr04   resource/graph_node.go:308   resource build error: unknown resource type: API rdk:component:sensor with model wootter:sensor:hcsr04 not registered   resource rdk:component:sensor/hcsr04  model wootter:sensor:hcsr04
- rdk.resource_manager.rdk:component:sensor/hcsr04   resource/graph_node.go:308   Message logged 18 times in past 1m0s: resource build error: unknown resource type: API rdk:component:sensor with model wootter:sensor:hcsr04 not registered   resource rdk:component:sensor/hcsr04  model wootter:sensor:hcsr04

I first started with over 8 of these errors, and slimmed it down to these 2. But after countless days and hours i'm starting to lose hope. I don't know where it's going wrong, how to localize the issue or how to fix it. After consulting with the viam AI assistant, it redirected me to here.

I'm using this github repo: https://github.com/Wootter/viam-HCSR04-module

[tawdry acorn]

Hi @pseudo orchid Sorry to hear your experiencing some issues when building modules. I see you're creating a sensor component for the hcsr04 ultrasonic sensor. Did you try the existing module from Viam already? https://app.viam.com/module/viam/ultrasonic?org=16518049-9dd3-479f-9644-c5d112aa42d8

[pseudo orchid]

I haven't really, mainly as i'm attempting to create 3 other modules for the: DHT22, VEML7700 and MH-SR602

[tawdry acorn]

Are you seeing this same error for your other modules as well?

[pseudo orchid]

More or less the same yeah, mainly seeing this one come back:

rdk.resource_manager.rdk:component:sensor/dht22_sensor   resource/graph_node.go:308   resource build error: unknown resource type: API rdk:component:sensor with model wootter:sensor:dht22 not registered   resource rdk:component:sensor/dht22_sensor  model wootter:sensor:dht22

[tawdry acorn]

Can you share your machine configuration JSON when you get a chance?

[pseudo orchid]

{
"components": [
{
"name": "dht22_sensor",
"namespace": "rdk",
"type": "sensor",
"model": "wootter:sensor:dht22",
"attributes": {
"pin": 23
},
"depends_on": [
"module/wootter:dht22-sensor"
]
}
],
"modules": [
{
"type": "registry",
"name": "wootter_dht22",
"module_id": "wootter:dht22-sensor",
"version": "latest",
"model": "wootter:dht22"
}
]
}

[tawdry acorn]

Are there any other errors in the Logs tab for your machine or under the module card's Error Logs panel? I just tried to install the DHT22 module on a Pi and ran into some errors during setup, which can cause the module to fail to start and lead to that "unknown resource" error.

[pseudo orchid]

I have these, where one I altered recently. Stating: AttributeError: type object 'Sensor' has no attribute 'SUBTYPE', as the AI assistant told me subtype got replaced by API

[tawdry acorn]

Yes, the fix for that should be to replace SUBTYPE with API in your code:

Registry.register_resource_creator(Sensor.API, hcsr04.MODEL, ResourceCreatorRegistration(hcsr04.new, hcsr04.validate))

I see you did something else in your code.

[pseudo orchid]

Wouldn't have a clue on what I would've done others, normally it was Sensor.SUBTYPE so I changed it to Sensor.API, and then I received thjose errors

[tawdry acorn]

Did you generate the initial module using the Viam CLI? Or did you use some other reference?

[pseudo orchid]

Used the github action menu. Using deploy.yml and meta.json

[tawdry acorn]

Apologies for the confusion. I meant when you got started creating the module, did you use the Viam CLI (https://docs.viam.com/dev/tools/cli/) and run viam module generate to setup the initial structure of the codebase? Or did you reference something else?

[pseudo orchid]

All honesty, I have no clue, i've been stuck with it for a week. All I remember doing is attempting to replecate what others have done, and attempt to follow some documentation. Although nevre coming across this one, i'll give it a shot though

[tawdry acorn]

Did changing SUBTYPE to API resolve the "unknown resource" error for your module?

[pseudo orchid]

I don't think it did, as I still see it. Could attempt to re-try and upload the code

[tawdry acorn]

In your commit, I see you made that change in only one file. It appears you have multuple files (main.py, init.py) also used to reference SUBTYPE and should use API now.

[pseudo orchid]

Did ctrl + f on each file for SUBTYPE, might've not done so correctly, i'll be sure to fix that. Thanks for finding that

I have to continue this another time, but I appreciate your help. It's getting me closer to a result 🙏

[tawdry acorn]

Happy to help. Best of luck on your project!

[pseudo orchid]

Finally got back, and got it running within the hour. Thank you so much for your help. If I was correct, I can export this data to my website?

[tawdry acorn]

Yes, you can use the TypeScript SDK to get that sensor data and display it on a web site

[tawdry acorn]

@pseudo orchid would you mind if I reach out over email to get feedback on your experience with modules?