Thought I'd give this a go, but getting lots errors along the lines of 'Expected shape from model of {...} does not match actual shape of {...} for output audio

Thought I'd give this a go, but getting lots errors along the lines of 'Expected shape from model of {...} does not match actual shape of {...} for output audio. Tried the debian and python methods of installation on an AMD Ryzen X13. EDIT: despite those errors I can create output.wav. However, interactive mode crashes with "No such file or directory: 'play'".