[galaxy-dev] ImportError: No module named galaxy_utils.sequence.fastq

Hi, I've this error message when I run groomer. My local instance of galaxy runs on a python virtualenv (python 2.7) and I have make the latest update with : hg pull -u. I've verified and this library is present in my galaxy-dist/lib/galaxy_utils/sequence directory. I've found no other idea than the update on this forum to run groomer correctly, any other idea ? Thanks. Julie