Whille installing getting this error :
Installing for Ubuntu trusty amd64
In case you encounter an error, you can post on https://discuss.frappe.io
Adding ubuntu mariadb repo
Installing packages for Ubuntu. This might take time…
Reading package lists…
Building dependency tree…
Reading state information…
build-essential is already the newest version.
build-essential set to manually installed.
libxslt1.1 is already the newest version.
xfonts-base is already the newest version.
fontconfig is already the newest version.
libxext6 is already the newest version.
libxrender1 is already the newest version.
python-setuptools is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libmariadbclient-dev : Depends: libmariadbclient18 (>= 10.0.23+maria-1~trusty) but it is not going to be installed
mariadb-server : Depends: mariadb-server-10.0 (= 10.0.23+maria-1~trusty) but it is not going to be installed
python-mysqldb : Depends: libmysqlclient18 (>= 5.5.13-1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.