Getting the error message when using matplotlib:
Error #15: Initializing libiomp5.dylib, but found libiomp5.dylib already initialized OMP: Hin
conda install --revision 0 doesn't solve UnsatisfiableError: The following specifications... for me. So I manually install nomkl and remove mkl and mil-service in Anaconda-Navigator environment, and it works great for me!
conda install --revision 0
UnsatisfiableError: The following specifications...
nomkl
mkl
mil-service