In addition to the other replies, one I've encountered is the case where conda doesn't provide a build for a package (thus, one must use pip or something else t

In addition to the other replies, one I've encountered is the case where conda doesn't provide a build for a package (thus, one must use pip or something else to manage that dependency) causing weird issues with respect to maintenance and updates. The two worst are in the other comments: ensuring sync'd dependencies across multiple environments and developers, and the horrendous resolution times leading to a useless error message when failures occur.