求助贴：制作R包的若干问题

小风细雨

最近正在制作个R包，还是遇到了些困难，已经困扰了好几天，希望路过的大神帮忙！

测试平台：i386-w64-mingw32 (32-bit)
R版本：RStudio  3.0.1
1，用ROXYGEN2是不是只能生成sayHello.Rd，而不能生成sayHello-package.Rd，这个文档得手动写？
2，sayHello-package.Rd这个是不是要删除,因为不删除的话，check的时候就卡在这个地方了：* checking Rd cross-references ...；但是正式上传的话，是要的吧，要不然帮助文档不就没有了？
3，Build and reload 之后出现警告：WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:

http://cran.rstudio.com/bin/windows/Rtools/
4, check出现错误：* checking PDF version of manual without hyperrefs or index ... ERROR
Re-running with no redirection of stdout/stderr.
Hmm ... looks like a package
You may want to clean up by 'rm -rf C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/Rtmpa4aQeA/Rd2pdf13c01e5b116f'
Error in texi2dvi(file = file, pdf = TRUE, clean = clean, quiet = quiet,  :
  pdflatex is not available
Error in running tools::texi2pdf()