https://ci.appveyor.com/project/jreback/pandas-465/build/job/ic8ytmkwcc8nfucc Current are - `conda==4.1.1` is good - `conda-build==1.21.0` seems buggy a working version is: - `conda=4.0.8` - `conda-build=1.20.3` may need to fix the version if conda-build not fixed soon