Hello,
I have an error and I paste the error message below:
Basically, I was doing a classification task with a model, and I get this error when I try to do back propagation. I was trying to solve this issue, so I checked a few posts that say that this error is due to the shape-matching problem.
However, for my error, I doubt that this is a shape-not-matching problem, because forward propagation works without any error. I can calculate loss just fine on cuda without any problems, as you can see in the screenshot.
FYI, the loss is categorical cross entropy loss! 
I will wait for your replies!
Thank you.
Could you run your code on the CPU and check if you are getting a better error message?
We have unfortunately seen a few errors wrongly reported as cuBLAS or cuDNN issues as the actual error was not properly caught and raised.
Hello, thank you so much for your reply! 
the one that I got an error was from the sever of my company’s environment.
However, as you could see from the attached screenshot below, I didn’t get the error that I reported, from a different environment from that of my company’s. So I think it’s probably a specific version of a library that is throwing me the error. I’ll check on Monday and figure out which version of which library is problematic.
Thank you so much!
Could you update to the latest stable or nightly release, too?
In case you can still reproduce the issue on the other machine, could you post a minimal and executable code snippet, please?
