Error: Syslog-ng Installation error in RHEL 7

Error: Package: syslog-ng-3.2.5-4.el6.x86_64 (epel)
           Requires: libpcre.so.0()(64bit)

Solution:

1. yum remove epel-release
2. # wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-9.noarch.rpm
# rpm -ivh epel-release-7-9.noarch.rpm

3. yum clean all
4. yum repolist

then try to install package.