Model compilation/processing error: No relevant model files found in ZIP archive

🤝 Community Help
1

Howdy.

I’m building for os 26 (macOS and iOS attempted) I am trying to use a model I’ve created in Roboflow. Following the instructions here I was able to connect my API, and build with the Swift Package.

However, I am finding I get the following error:

Model compilation/processing error: No relevant model files found in ZIP archive

I’ve verified:

  • Same error on macOS, iOS Simulator, iPhone HW
  • Verified I AM downloading a zip, but it’s 128 b so it’s just an empty zip
  • Verified the model, API key, etc are correct
    • Negative test: Confirmed that if I “incorrectly” input invalid model name it throws a different error

I have filed a bug with Roboflow, no reply yet.

Thanks!

2

I’ve continued my research as I haven’t heard from support or other avenues. I’ve verified with the credentials in the Swift Package tests:

API Key: rf_EsVTlbAbaZPLmAFuQwWoJgFpMU82
Model: hat-1wxze-g6xvw
Version: 1

I’ve verified within the Swift Package itself and a sample project I created to test that these details work. Noting that the API key appears to be the public one, I attempted to use mine as well with no improvement.

I triple checked that I am copying the correct values from the model and version per:

Thinking it might be an issue with my model being private I quickly made it public, tested again. Continued to not be able to access this model.

Any tips?

3

@Ford Any thoughts here? Thanks in advance.

4

I’ve confirmed that I am successfully querying the model, this appears to be a server side issue…

{
“coreml”: {
“name”: “XX_MODEL_NAME_XX”,
“type”: “instance-segmentation”,
“icon”: “XX_ICON_BASE64_XX”,
“iconHasAnnotation”: true,
“annotation”: “XX_CLASS_NAME_XX”,
“colors”: {
“background_class83422”: “#C7FC00”,
“XX_CLASS_NAME_XX”: “#8622FF”,
“XX_CLASS_NAME_XX”: “#FE0056”
},
“modelType”: “rfdetr-seg-preview”,
“classes”: [“background_class83422”, “XX_CLASS_NAME_XX”, “XX_CLASS_NAME_XX”],
“model”: “https://repo.roboflow.com/models/--URL--WITH--GOOG-CREDENTIAL”,
“environment”: “https://repo.roboflow.com/models/--URL--WITH--GOOG-CREDENTIAL”
}
}

5

The actual missing file is the weights.mlpackage.zip:

404 response:
https://repo.roboflow.com/models/XX_APIKEY_XX/XX_MODEL_VALUE_XX/3/weights.mlpackage.zip… etc

6

The actual 404 error response includes the following:

<Error>
	<Code>NoSuchKey</Code>
	<Message>The specified key does not exist.</Message>
</Error>
7

Unfortunately, after attempting multiple ways to get the CoreML model I ended up doing the following:

  • Downloading the database with annotations for YOLOv8
  • Running the annotations through another training session locally on my computer
  • CoreML model obtained

Pretty disappointed that a clear bug exists on the platform and seemingly no resolution or communication is possible with the team. In the end I guess I’ll use Roboflow for annotation until my current subscription lapses then either write my own tool or find a competitor.