Unfamiliar error

[ErnestTBass]

I get the following warning when I try to run a

conda env create -f environment.yml

Error:
Warning: you have pip-installed dependencies in your environment file, but you do not list pip itself as one of your conda dependencies.  Conda may not use the correct pip to install your packages, and they may end up in the wrong place.  Please add an explicit pip dependency.  I'm adding one for you, but still nagging you.

I googled the term and it is still not clear. What does "Please add an explicit pip dependency" mean and how do I do it?

Any help appreciated. Thanks in advance.

Respectfully,

ErnestTBass

[Larz60+]

for anaconda, use conda instead of pip

This is anaconda's reasoning behind this:

Having been involved in the python world for so long, we are all aware of pip, easy_install, and virtualenv, but these tools did not meet all of our specific requirements. The main problem is that they are focused around Python, neglecting non-Python library dependencies, such as HDF5, MKL, LLVM, etc., which do not have a setup.py in their source code and also do not install files into Python’s site-packages directory.