Hi all,
This looks like a known issue, though you haven't included enough of the error message for me to be sure. If it is the same error as reported here:
then unless you need Hermite or Laguerre polynomials you can simply ignore it. If you do need these bases, you can upgrade the released version to the latest version on github by following the instructions at that pull request. This will be fixed in the next release.
If the error message is not the same as the one reported there, please feel free to report back here.
Jeff