TypeError: Failed to convert object of type <class 'list'> to Tensor.

[Bhavesh-Joshi]

Describe the bug
An error occurred while saving model with method save_savedmodel

TypeError: Failed to convert object of type <class 'list'> to Tensor. Contents: [None, -1]. Consider casting elements to a supported type.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'https://gist.github.com/Bhavesh-Joshi/4db376e4aa6a2ef808c4e54618acc987#file-vqa_train-py'
2. Run vqa_train.py
3. See an error

Expected behavior
The model should be saved.

Environment :

• OS: Ubuntu
• Version 20.04.1 LTS
• Python version 3.6
• Ludwig version 0.3

Additional context
Just want to add one scenario which I observed is the error only occurred when I train the model with the image dataset. With another kind of data like text, numbers it works fine.

[w4nderlust]

Thanks @Bhavesh-Joshi will look into it.

[jimthompson5802]

@Bhavesh-Joshi I wanted to follow-up with you re: the error you encountered. First thank for the information you provided. Using that information I was able to receate the error you are seeing. Although I'm still doing research into root cause to figure out a fix, I wanted to provide you a quick status update.

Lastly, thank you for taking the time to report the issue and helping us improve Ludwig.

[jimthompson5802]

@Bhavesh-Joshi I forgot to ask in the previous posting, if it is possible to get a copy of the image you used Antenna.jpg?

[Bhavesh-Joshi]

Thanks for the update the @jimthompson5802. Please find the attached Antenna.jpg