Just for completeness ,this issue was also as part of
CentOS7 install issues
Regarding the precompiled packages (14.1.0-13.1), they presently fail to install on our system due to
A. the packages require sendmail - but we use postfix.
B. the packages require libical.so.0 but we have libical.so.1
A search for “libical” will turn up both threads.
/Bjarne