ML.Net deep-learning classification tutorial code doesn't build on Linux platform?

**System Information (please complete the following information):**
- OS & Version: [e.g. Windows 10] Ubuntu 23.10
- ML.NET Version: [e.g. ML.NET v1.5.5] 3.0.1
- .NET Version: [e.g. .NET 5.0] .Net 8

**Describe the bug**
Following this tutorial https://learn.microsoft.com/en-us/dotnet/machine-learning/tutorials/image-classification-api-transfer-learning, VSCode hits the following error:
```
error NU1301: The local source '/usr/src/ML.Net/DeepLearning_ImageClassification_Binary/C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\' doesn't exist.
```

**To Reproduce**
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
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**Screenshots, Code, Sample Projects**
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**Additional context**
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