CUDA path not detected. Set CUDA_PATH environment variable if CuPy fails to load

C:\Users\jkim4\Anaconda3\lib\site-packages\cupy\_environment.py:213: UserWarning: CUDA path could not be detected. Set CUDA_PATH environment variable if CuPy fails to load.
  warnings.warn(
Traceback (most recent call last):
  File "C:\Users\jkim4\Anaconda3\lib\site-packages\cupy\__init__.py", line 16, in <module>
    from cupy import _core  # NOQA
  File "C:\Users\jkim4\Anaconda3\lib\site-packages\cupy\_core\__init__.py", line 1, in <module>
    from cupy._core import core  # NOQA
  File "cupy\_core\core.pyx", line 1, in init cupy._core.core
  File "C:\Users\jkim4\Anaconda3\lib\site-packages\cupy\cuda\__init__.py", line 8, in <module>
    from cupy.cuda import compiler  # NOQA
  File "C:\Users\jkim4\Anaconda3\lib\site-packages\cupy\cuda\compiler.py", line 12, in <module>
    from cupy.cuda import function
  File "cupy\cuda\function.pyx", line 1, in init cupy.cuda.function
  File "cupy\cuda\texture.pyx", line 1, in init cupy.cuda.texture
ImportError: DLL load failed while importing driver: 지정된 모듈을 찾을 수 없습니다.

The above exception was the direct cause of the following exception:

Hello. I'm trying to run some code from the paper, and i'm getting trouble and can't even implement the author's code.

I installed cuda from nvidia, cupy from conda-forge. But somehow it says that CUDA path could not be found. Is there any way to solve this problem? Thank you.