Having Conda 4.5.11, and following the guidelines: conda env create -f environment.yml Gives me more than 180 packages not found ResolvePackageNotFound: - bitarray==0.8.1=py36h14c3975_1 - docutils==0.14=py36hb0f60f5_0 - cairo==1.14.12=h7636065_2 - urllib3==1.22=py36hbe7ace6_0 ... Importing the yml file in Anaconda Navigatore gives me the same issue. Result is that there is no environment created. Python packages up to 3.7. are installed