Some generic hints for librenms issues on Centos, August 2018

Hi, i’ve got a problem applying this fix:

missing new dependency mysqlnd
install mysqlnd. On centos, this means some permutation of:
yum remove php72w-mysql
yum install php72w-mysqlnd
yum swap php72w-mysql php72w-mysqlnd”

for the command “yum install php72w-mysqlnd” the system returns me this:
“Error: php72w-common conflicts with php70w-common-7.0.31-1.w7.x86_64”

If i apply the --skip-broken parameter, the system returns me this packages skipped:
" php72w-common-7.2.8-1.w7.x86_64 from webtatic
php72w-mysqlnd-7.2.8-1.w7.x86_64 from webtatic
php72w-pdo-7.2.8-1.w7.x86_64 from webtatic"

I’ve cleaned the yum repository with “yum clean all”, but still the same problem. Anyone can help me? Thank you so much.