Error: Bioconductor version cannot be validated; no internet connection?

报错图
解决方法:options(download.file.method = 'libcurl');options(url.method = 'libcurl')
运行后再运行前面代码:

成功图
Error: Bioconductor version cannot be validated; no internet connection?
解决方法:options(download.file.method = 'libcurl');options(url.method = 'libcurl')
运行后再运行前面代码: