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IPython Notebook won't open; throws a "Symbol Not Found" error

I cannot open IPython Notebook from terminal. I am getting the following error:

self._handle = _dlopen(self._name, mode)
OSError: dlopen(/Users/Username/anaconda/lib/python2.7/site-packages/zmq/libzmq.so, 10): Symbol not found: __ZNSs4_Rep20_S_empty_rep_storageE
  Referenced from: /Users/Username/anaconda/lib/python2.7/site-packages/zmq/libzmq.so
  Expected in: dynamic lookup

Does anyone have any suggestions for solutions? Conda Google Group has a thread with no responses.

The IP terminal is launched in the terminal with $ Ipython

. $ Ipython notebook

asks a question.

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2 answers


I needed to completely uninstall and reinstall Anaconda.



I removed all Anaconda directories (both user-specific and root). Then I downloaded Anaconda from the Continuum site and reinstalled. Now it works.

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You could probably install it with conda install -f pyzmq

.



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