toTuple() occurs error

When I convert module output to tuple, I got an error like this.
I can’t debug anything. How to debug libtorch? I’m using libtorch1.5.0(debug)

Could you translate the error message, please?

Oh, I’ve solved the problem.
The cause of the problem was the difference between Torchscript and Libtorch versions.
Thank you ptrblck ! : )