Fix NotImplementedError

✅ Solution

NotImplementedError in Unsloth often arises when a CUDA kernel (like "normal_kernel_cuda") is called for an unsupported data type (e.g., Byte) or platform (CPU-only). To fix this, either ensure torch and CUDA are correctly installed if GPU is intended, or modify Unsloth's code to provide CPU/alternative implementations for the missing CUDA kernels by either dispatching to appropriate PyTorch functions or skipping CUDA calls altogether for CPU-only environments using `torch.device("cpu")`.