[CoreML] PT2E requires minimum deployment target as IOS17 and default=None raises error
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@metascroy is already working on this.
Since Aug 12, 2025.
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Description
🐛 Describe the bug
Context: https://github.com/pytorch/executorch/pull/13265#discussion_r2267529945
default=None chooses IOS15 but observed an error: ValueError: No available version for quantize in the coremltools.target.iOS15 opset. Please update the minimum_deployment_target to at least coremltools.target.iOS17
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run tests in the PR #13265
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