I'm facing the same issue with ubuntu 18.04.01
I get the following error:
The following packages have unmet dependencies:
libncurses5-dev : Depends: libtinfo5 (= 6.1-1ubuntu1) but 6.1-1ubuntu1.18.04 is to be installed Depends: libncurses5 (= 6.1-1ubuntu1) but 6.1-1ubuntu1.18.04 is to be installed Depends: libtinfo-dev (= 6.1-1ubuntu1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
I'm facing the same issue with ubuntu 18.04.01
Depends: libncurses5 (= 6.1-1ubuntu1) but 6.1-1ubuntu1.18.04 is to be installed
Depends: libtinfo-dev (= 6.1-1ubuntu1) but it is not going to be installed
I get the following error:
The following packages have unmet dependencies:
libncurses5-dev : Depends: libtinfo5 (= 6.1-1ubuntu1) but 6.1-1ubuntu1.18.04 is to be installed
E: Unable to correct problems, you have held broken packages.