jupyter notebook: libgcc_s.so.1 must be installed for pthread_cancel to work

When starting a jupyter notebook (or jupyter lab) I get the error:

```
libgcc_s.so.1 must be installed for pthread_cancel to work
Aborted (core dumped)
```

This only happens after I install jupyter-ros. Any ideas?

I'm using Python 3.7 in a conda 4.8.3 environment.