That's what I get when instantiating IChroma (i.e. trying to access the ChromaSDK.
I have already installed Synapse 3. Do I need to copy something to some directory? Where is the CHromaSDk located anyway in a standard Synapse3 installation?

Edit: At least I have found out which file is causing the error. It is https://github.com/chroma-sdk/Colore/blob/release/6.0.0/src/Colore/Native/NativeSdkMethods.cs.