Voxel plugin™

I’m trying to get this installed on 4.19 preview and upon generating my project files I’m receiving the following error:



ERROR: c:\Users\ULLS\Documents\Unreal Projects\VoxelTest\Plugins\Voxel\Source\Voxel\Voxel.Build.cs(17,51) :
error CS0122: 'UnrealBuildTool.BuildConfiguration' is inaccessible due to its protection level
ERROR: UnrealBuildTool Exception: Unable to compile source files.

Anyone have any ideas?