chore(dev): better err message when extractprops fails (#1337)
chore(dev): better err message when extractprops fails (#1337)

@mthuret lost some good time with that because there's no context on
which dev script generated this error. JS stack traces FTW
algolia/react-instantsearch,algolia/react-instantsearch,algolia/react-instantsearch,algolia/react-instantsearch