installation of package xx had non-zero exit status在安装包时如遇到非零错误:手动在CRAN下载包，注意依赖，CRAN页面中以import:xxx标出install.packages("~/Downloads/MathiasHarrer-dmetar-17a76a3.tar.gz", repos = NULL, type = "sourc...

安装git clone https://aur.archlinux.org/snapd.gitcd snapdmakepkg -si设置代理$ sudo snap set system proxy.http="http://<proxy_addr>:<proxy_port>"$ sudo snap set system proxy.https="http://...