Problem Installing mysql-workbench on ubuntu 19.04
I solved this problem by installing the libzip package, directly from the deb package. I found at https://ubuntu.pkgs.org/18.10/ubuntu-universe-amd64/libzip4_1.1.2-1.1_amd64.deb.html. Download and install libzip4, then install mysql-workbench from the apt or deb package, whichever you prefer.
Now, mysql workbench is available for ubuntu 19.04. You can manually install after downloading the file.
Step 1: Direct download link- https://dev.mysql.com/downloads/file/?id=488567
OR
Visit here select your OS then download as per OS version https://dev.mysql.com/downloads/workbench/
Step 2: sudo apt install file_path_of_downloaded_workbench
Finish!!
on Ubuntu 19
1)I had to, preceding it on Ubuntu 19, also install manually a library libzip https://ubuntu.pkgs.org/18.10/ubuntu-universe-amd64/libzip4_1.1.2-1.1_amd64.deb.html
2) then manually selecting on a download page deb package for mysql workbench https://dev.mysql.com/downloads/workbench/
then install deb packages via a standard apt installer in a Downloads dir
sudo apt install ./libzip4_1.1.2-1.1_amd64.deb
and downloaded workbench deb package
sudo apt install ./mysql-workbench-community_8.0.16-1ubuntu18.04_amd64.deb