Update:
I tried reinstalling, deleting binaries and intermediate files, etc., updating the target.cs of the editor files in RuntimeMeshComponent, still doesn’t work, as the error below persists:
Severity Code Description Project File Line Suppression State
Error LNK1181 cannot open input file ‘C:\Program Files\Epic Games\UE_4.20\Engine\Plugins\RuntimeMeshComponent-master\RuntimeMeshComponent-master\Intermediate\Build\Win64\UE4Editor\Development\RuntimeMeshComponent\UE4Editor-RuntimeMeshComponent.lib’ DungeonOfTimePaul C:\Users\Desktop\Unreal ■■■■■\DungeonOfTimePaul\Intermediate\ProjectFiles\LINK 1