@Inveracity you can make velocity layers with the audio loop player looks like gain modulation (velocity). but if you put for example 4 layers, it would be necessary to make 4 velocity envelopes which would be extremely long to do each time. So stay on the sampler and you can also add gain or filter velocity envelopes.

I solved the problem! 🎊

Essentially I had an old installation of the Build Tools present on my system, so when I installed Visual Studio 2017 I then had a duplicate build environment that was lacking the correct windows SDK (because I had been a dummy and installed the windows sdk into the build tools instead of vs2017).

So I uninstalled the Build Tools via the Visual Studio Installer leaving only VS2017 installed.

After that I removed the CL= environment variable entirely from my system and added

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\bin\Hostx64\x64

to the PATH environment variable so that cl.exe could be executed from anywhere.

From here on it was following the video guide basically.

I added the Windows 10 SDK (10.0.16299.0) by modifying the VS2017 installation in the Visual Studio Installer.

Then I opened the HISE standalone project in projucer and built the HISE.exe as per the video instructions - this time no warnings of mac files detected!

And finally I ran HISE, added a sampler and an empty UI, exported it as VST3 64bit and success! :party_popper:

Now I can go back to actually making my instrument :face_with_tears_of_joy: