在安装neuralnet程序包时,出现如下错误:> install.packages("neuralnet")
试开URL’
http://ftp.ctex.org/mirrors/CRAN ... /neuralnet_1.32.zip
Content type 'application/zip' length 58797 bytes (57 KB)
打开了URL
downloaded 28 KB
错误于read.dcf(file.path(pkgname, "DESCRIPTION"), c("Package", "Type")) : 
  无法打开链结
此外: 警告信息:
1: In download.file(url, destfile, method, mode = "wb", ...) :
  downloaded length 28936 != reported length 58797
2: In unzip(zipname, exdir = dest) : 从zip文件中抽取1时出了错
3: In read.dcf(file.path(pkgname, "DESCRIPTION"), c("Package", "Type")) :
  无法打开压缩文件'neuralnet/DESCRIPTION',可能是因为'No such file or directory'
> 
求问各位大神怎么解决?