Hi everyone - I have the exact same issue. After running an in-place update from Ubuntu 16.04 LTS to Ubuntu 18.04 LTS, and running the Wordops installer, I get this error when installing a wo stack update.
Reading package lists...
Building dependency tree...
Reading state information...
Package php7.4-imagick is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
Package php7.3-curl is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
Package php7.4-curl is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
Package php7.3-imagick is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'php7.3-curl' has no installation candidate
E: Package 'php7.3-imagick' has no installation candidate
E: Package 'php7.4-curl' has no installation candidate
E: Package 'php7.4-imagick' has no installation candidate
2021-04-21 23:56:42,389 (INFO) wo : ^[[94m^[[91mOops Something went wrong!!^[[0m
this is obviously somehow related to php7.3 and php7.4, but is there a solution to clean this up?