This problem happend when I train the model
`The expanded size of the tensor (824) must match the existing size (512) at non-singleton dimension 1.  Target sizes: [32, 824].  Tensor sizes: [1, 512]`
why this happend and what should I do?
We cannot identify the problem without additional context. Please provide the code that can reproduce this error.<|||||>Hi,

For training-related questions, please refer to the [forum](https://discuss.huggingface.co/). We like to keep Github issues for bugs/feature requests.

Thanks!<|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/master/CONTRIBUTING.md) are likely to be ignored.