Package php7.2-mbstring missing in Ubuntu 18.04

I am trying to find a way to install php7.2-mbstring into Ubuntu 18.04, but I can't find find it. sudo apt-get install php7.2-mbstring responds with not finding it. According to the Cannonical and the Debian site, this packet exists though.

Is there any special thing to do to get this package?


Solution 1:

Enabling the universe repository:

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

helped me installing (php7.1-mbstring):

sudo apt-get install php7.1-mbstring

Thanks for jdtech and Ubuntu