Unsupported operations for TensorFlow word embeddings demo model #1328
Description
Describe the bug
The simple TensorFlow word embeddings demo produces a model that tf2onnx can't convert.
Urgency
We are prototyping using onnx (via onnxruntime), so the more of our models we can convert the more likely we are to be able to move forward with onnx. :)
System information
- OS Platform and Distribution (e.g., Linux Ubuntu 16.04): macOS 10.15.7
- Tensorflow Version: 2.4.1
- Python version: 3.8.7
To Reproduce
Follow the TensorFlow word embeddings demo notebook at https://www.tensorflow.org/tutorials/text/word_embeddings, and add a cell to save the model with model.save('file name here').
Converting the model via python -m tf2onnx.convert --saved-model saved --output word-embeddings.onnx --opset 13 produces:
ERROR - Unsupported ops: Counter({'StaticRegexReplace': 2, 'StringLower': 1, 'StringSplitV2': 1, 'RaggedTensorToTensor': 1})
Expected behavior
The model should convert without error.