The end user has successfully performed a complete fresh install of Skyrim Special Edition and followed the STEP guide 1.0.0 verbatim. The end user has reached the instruction, "Run DynDOLOD - 3D Tree LOD > 4. Run DynDOLOD from the MO2 executable drop-down list." When the end user starts DynDOLOD from MO2 (Mod Organizer 2), it renders this error message:
The end user has verified the core files have been installed "completly", or indeed, completely.
The end user has read the fuc--sorry--"FUNTASTIC" manual's requirement sections. The end user even read it a fifth time, just in case.
The end user has successfully installed both the x86 and x64 of the linked Visual Studio Redistributables, as by your guide's own admission, TexGen would have failed to run. And yes, the machine was shut down and then booted up again.
As you can see, proof has been supplied to verify having followed your instructions. Please be sure to provide proof in kind for any claims of mistakes made on the end user's part. Thank you very much for any cordial assistance you provide.