interesting that those files are inside editor folder, but still cause errors:
Assets\PointCloudTools\Editor\Tools\RandomCloudGenerator.cs(13,41): error CS0246: The type or namespace name 'EditorWindow' could not be found (are you missing a using directive or an assembly reference?)
Assets\PointCloudTools\Editor\Tools\RandomCloudGenerator.cs(27,10): error CS0246: The type or namespace name 'MenuItemAttribute' could not be found (are you missing a using directive or an assembly reference?)
interesting that those files are inside editor folder, but still cause errors: