ValueError: zero-size array to reduction operation minimum which has no identity

[dwightnwaigwe]

Hello,

I get an "ValueError: zero-size array to reduction operation minimum which has no identity"
error at the line

image = toimage(np.array(photo_bytes).reshape(height, width)).

Any idea what's going on here? This is on the HWDB1.1trn_gnt dataset.

thanks

[dwightnwaigwe]

I just learned that I had to decompress .alz file after unzipping the original download.