How to install mkl-fft

[ZeraPeng]

When trying "pip install -r requirements.txt", I encountered the problem "ERROR: Could not find a version that satisfies the requirement mkl-fft==1.2.0 (from versions: 1.0.0.17, 1.0.2, 1.0.6)".
I searched on the web and found out that mkl-fft seems not having the version 1.2.0.
Is the version of this package important? Or how can I install mkl-fft==1.2.0?
Thanks!