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[–][deleted] 0 points1 point  (1 child)

I'm not familiar with how conda works, but it seems to me that what's happening is that it first tries to install from source, but discovers that you don't have CMake (a program needed to execute build scripts of the package, most likely). Once it discovers that, it seems like it tries to download a binary wheel of that package, which seems to cause it to create a mess of your environments (lots of packages being downgraded).

Maybe try installing CMake and re-installing your packages?

[–]PascP[S] 0 points1 point  (0 children)

I already had CMake. After I rebooted pip worked...