[pip] `libbbcsig.dylib` not found

[ebiiim]

I have installed the latest version of bbc1 using pip.
But from bbc1.core import bbclib does not work and returns an OSError indicating that libbbcsig.dylib does not exist. (I confirmed both Pipenv and venv)

Python 3.7.2 (default, Feb 12 2019, 08:15:36) 
[Clang 10.0.0 (clang-1000.11.45.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from bbc1.core import bbclib
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/{PATH_TO_PIPENV}/lib/python3.7/site-packages/bbc1/core/bbclib.py", line 33, in <module>
    import bbc1.core.libs.bbclib_utils as bbclib_utils
  File "/{PATH_TO_PIPENV}/lib/python3.7/site-packages/bbc1/core/libs/bbclib_utils.py", line 29, in <module>
    from bbc1.core.libs.bbclib_config import DEFAULT_ID_LEN
  File "/{PATH_TO_PIPENV}/lib/python3.7/site-packages/bbc1/core/libs/bbclib_config.py", line 22, in <module>
    from bbc1.core.libs.bbclib_keypair import KeyType
  File "/{PATH_TO_PIPENV}/lib/python3.7/site-packages/bbc1/core/libs/bbclib_keypair.py", line 31, in <module>
    libbbcsig = cdll.LoadLibrary(os.path.join(directory, "libbbcsig.dylib"))
  File "/usr/local/Cellar/python/3.7.2_2/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ctypes/__init__.py", line 434, in LoadLibrary
    return self._dlltype(name)
  File "/usr/local/Cellar/python/3.7.2_2/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ctypes/__init__.py", line 356, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: dlopen(/{PATH_TO_PIPENV}/lib/python3.7/site-packages/bbc1/core/libs/libbbcsig.dylib, 6): image not found

How can I install it successfully?

[ebiiim]

It seems like a problem with caching.
When I re-installed bbc1 with the no-cache option, it worked well.
pip --no-cache-dir install bbc1
Sorry to bother you.