Likely needs to be updated
Edit: Only the case for the 34B and 70B models. 7B and 13B run as-is.
You can download the GGML model already
https://huggingface.co/TheBloke/Llama-2-7B-GGML
https://huggingface.co/TheBloke/Llama-2-13B-GGML