Cannot import the module in ComfyUI Portable

Error reads: Traceback (most recent call last): File "D:\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\nodes.py", line 2153, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 940, in exec_module File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed File "D:\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui_vlm_nodes\__init__.py", line 46, in <module> check_requirements_installed(llama_cpp_agent_path) File "D:\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui_vlm_nodes\__init__.py", line 35, in check_requirements_installed subprocess.check_call([sys.executable, '-s', '-m', 'pip', 'install', *missing_packages]) File "subprocess.py", line 413, in check_call subprocess.CalledProcessError: Command '['D:\\ComfyUI_windows_portable_nvidia\\ComfyUI_windows_portable\\python_embeded\\python.exe', '-s', '-m', 'pip', 'install', 'llama-cpp-agent', 'mkdocs', 'mkdocs-material', 'mkdocstrings[python]', 'docstring-parser']' returned non-zero exit status 2.