How can I debug a reproducible error? about onnxruntime HOT 2 OPEN

You have a model with dynamic dimensions. This means that dimension can vary, typically due to the input shape.
Often times that variable dimension affects output shapes with cascading effect downstream which means you have to make other nodes input and outputs have variable dimensions.
It is not always easy to make that work in all cases.

In this case Reshape takes data input with the first and the last dimensions being dynamic, meaning you have multiple variable dimensions.

The error message indicates that at least one dimension has a value of zero, but the attribute allow_zero is false(0) according to the image you posted.

To debug this, you have a couple of options. 1) Visually trace the data flow (it is actually possible, but not always) and attempt to compute where the zero is coming from and whether it should be there or should Reshape allow it 2) Rebuild from source (C++) and enable some debugging facilities and dump the input/output shapes or store it in the SQL Light database.

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@yuslepukhin Thanks for the feedback, the model is a https://github.com/rhasspy/piper model that was probably converted by their converter from a ckpt to onnx model, so you mean that a problem could be in the export script?

What I found strange is that with onnxruntime v1.16 I didn't had these errors

This is the code I suppose was used to convert that model: https://github.com/rhasspy/piper/blob/master/src/python/piper_train/export_onnx.py

About the debugging, can you visually trace interactively? because there are tons of nodes, would be nice to be able to have a way to put a breakpoint and then inspecting the call stack :)

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