Missing DLL

Hello,

I run SigmaStudio 4.4 on windows 10 64-bit and downloaded EVWSS-ADAU1452 MiniZ Demo files.
We plan to use one IC ADSP1452 for producing sounds in an Electric Vehicle.

Unfortunately when I open the file "EVWSS_SigmaDSP.dspproj" in sigma studio an error occurs :
1. HarmonicGenerator.HarmonicGenCell:    HarmonicGenerator, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
2. HarmonicGenerator.HarmonicGenAlg:     HarmonicGenerator, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null

Your help will be appreciated.
Thank you,
Gilles