The problem
On the Linux server, I have recently upgraded R version to 4.3.1. Today, when I try to use the arrow R package to read some large data files, I got the following error:
Error: package or namespace load failed for ‘arrow’ in dyn.load(file, DLLpath = DLLpath, ...):
unable to load shared object '/home/dli/R/arrow/libs/arrow.so':
libcrypto.so.1.1: cannot open shared object file: No such file or directory
It seems that the file libcrypto.so.1.1 is missing (not sure why as I did not change the OS in the past couple of months).
Solution
It seems that libcrypto.so.1.1 is included in the libssl1.1 program. I browsed the options at http://nz2.archive.ubuntu.com/ubuntu/pool/main/o/openssl/?C=M;O=D
wget http://nz2.archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.1f-1ubuntu2_amd64.deb
sudo dpkg -i libssl1.1_1.1.1f-1ubuntu2_amd64.deb
Use the above command to install the missing program. Problem solved. Sign… :smilingfacewithtear: :smilingfacewithtear: