ERROR: configuration failed for package ‘openssl’

• removing ‘/usr/local/lib/R/site-library/openssl’

ubuntu系统 缺少 openssl：

apt-get install openssl
apt-get install openssl-devel

或者：

wget https://www.openssl.org/source/openssl-1.1.1i.tar.gz

tar -xvf  openssl-1.1.1i.tar.gz

cd openssl-1.1.1i/

./config 

make && make install

./config shared 

make clean

make  && make install