Mac系统打不开jupyter notebook

Question

```bash
opt/anaconda3/lib/python3.8/site-packages/zmq/backend/cffi/__pycache__/_cffi_ext.c:292:3: warning: code will never be executed [-Wunreachable-code]
  _cffi_check__zmq_msg_t(0);
  ^~~~~~~~~~~~~~~~~~~~~~
opt/anaconda3/lib/python3.8/site-packages/zmq/backend/cffi/__pycache__/_cffi_ext.c:325:3: warning: code will never be executed [-Wunreachable-code]
  _cffi_check__zmq_pollitem_t(0);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.
ld: library not found for -lzmq
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Traceback (most recent call last):
  File "/Users/fanc_c/opt/anaconda3/bin/jupyter-notebook", line 7, in <module>
    from notebook.notebookapp import main
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/notebook/notebookapp.py", line 78, in <module>
    from .services.kernels.kernelmanager import MappingKernelManager, AsyncMappingKernelManager
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/notebook/services/kernels/kernelmanager.py", line 18, in <module>
    from jupyter_client.session import Session
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/jupyter_client/__init__.py", line 4, in <module>
    from .connect import *
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/jupyter_client/connect.py", line 21, in <module>
    import zmq
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/__init__.py", line 55, in <module>
    from zmq import backend
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/backend/__init__.py", line 40, in <module>
    reraise(*exc_info)
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/utils/sixcerpt.py", line 34, in reraise
    raise value
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/backend/__init__.py", line 27, in <module>
    _ns = select_backend(first)
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/backend/select.py", line 28, in select_backend
    mod = __import__(name, fromlist=public_api)
  File "/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/backend/cython/__init__.py", line 6, in <module>
    from . import (constants, error, message, context,
ImportError: dlopen(/Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/backend/cython/error.cpython-38-darwin.so, 2): Library not loaded: @rpath/libzmq.5.dylib
  Referenced from: /Users/fanc_c/opt/anaconda3/lib/python3.8/site-packages/zmq/backend/cython/error.cpython-38-darwin.so
  Reason: image not found

```

Answer 1

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