各位大神帮看看这段代码哪里出错了，谢谢
## Not run:
snp.plotter(config.file = "config.txt")
## End(Not run)
## Not run:
snp.plotter(EVEN.SPACED = FALSE,
PVAL.THRESHOLD = 1,
USE.GBL.PVAL = TRUE,
SYMBOLS = NA,
SAMPLE.LABELS = NULL,
LAB.Y = log,
DISP.HAP = FALSE,
DISP.SNP = TRUE,
DISP.COLOR.BAR = TRUE,
DISP.PHYS.DIST = TRUE,
DISP.LEGEND = TRUE,
DISP.MARKER.LINES = TRUE,
DISP.LDMAP = FALSE,
DISP.TYPE = "symbol",
DISP.MULT.LAB.X = FALSE,
DISP.SNP.NAMES = TRUE,
DISP.CONNECTING.LINES = TRUE,
LD.TYPE = "dprime",
LD.COLOR.SCHEME = "heat",
USE.COLORS = TRUE,
COLOR.LIST = NULL,
PALETTE.FILE = NULL,
FONT.FACTOR = NA,
IMAGE.TITLE = NULL,
IMAGE.NAME = "snp.plotter",
IMAGE.TYPE = "pdf",
IMAGE.SIZE = 3.5,
CONNECTING.LINES.FACTOR = 1,
CONNECTING.LINES.ADJ = 0,
CONNECTING.LINES.VERT.ADJ = 0,
CONNECTING.LINES.FLEX = 0,
SNP.FILE = NULL,
HAP.FILE = NULL,
GENOTYPE.FILE = NULL,
FONT.FACTOR = NULL,
SYMBOL.FACTOR = NULL,
config.file = NULL
)
## End(Not run)

运行的时候老是出错：

这是什么原因啊？