Cannot install php-mbstring on ubuntu 18.04

Question

I'm using ubuntu 18.04. I'm trying to install mbstring but terminall show error:

php-mbstring : Depends: php7.2-mbstring but it is not going to be installed

So I' trying to install php7.2-mbstring but error again:

php7.2-mbstring : Depends: php7.2-common (= 7.2.3-1ubuntu1) but 7.2.7-0ubuntu0.18.04.2 is to be installed

Sorry for my bad english. Anyone have idea how to fix this :(

Answer 1

Make sure you have the "universe" repository enabled for apt-get:

sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) universe"