Not able to install on Ubuntu zesty(17.04) about eternalterminal

[MisterTea]

Sorry about that. I took a different approach and got it working using an ubuntu 17 VM. It should be fixed now.

➜  github sudo apt update
Hit:1 http://us.archive.ubuntu.com/ubuntu zesty InRelease
Get:2 http://us.archive.ubuntu.com/ubuntu zesty-updates InRelease [89.2 kB]    
Get:3 http://ppa.launchpad.net/jgmath2000/et/ubuntu zesty InRelease [21.3 kB]  
Get:4 http://security.ubuntu.com/ubuntu zesty-security InRelease [89.2 kB]     
Get:5 http://us.archive.ubuntu.com/ubuntu zesty-backports InRelease [89.2 kB]  
Get:6 http://ppa.launchpad.net/jgmath2000/et/ubuntu zesty/main amd64 Packages [576 B]
Get:7 http://ppa.launchpad.net/jgmath2000/et/ubuntu zesty/main i386 Packages [576 B]
Fetched 290 kB in 1s (273 kB/s)   
Reading package lists... Done
Building dependency tree       
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
➜  github sudo apt install et
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  et
0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
Need to get 139 kB of archives.
After this operation, 589 kB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/jgmath2000/et/ubuntu zesty/main amd64 et amd64 3.1.0-zesty2 [139 kB]
Fetched 139 kB in 0s (140 kB/s)
Selecting previously unselected package et.
(Reading database ... 185854 files and directories currently installed.)
Preparing to unpack .../et_3.1.0-zesty2_amd64.deb ...
Unpacking et (3.1.0-zesty2) ...
Setting up et (3.1.0-zesty2) ...
Created symlink /etc/systemd/system/multi-user.target.wants/et.service → /lib/systemd/system/et.service.
➜  github 

[MisterTea]

https://launchpad.net/~jgmath2000/+archive/ubuntu/et/+packages

Fixed. run an apt update and then apt install should work.

[mbtamuli]

@MisterTea I tried running, apt update and then apt install. It didn't work. I did an apt clean all too, still didn't work.

[seoh]

I got same issue on ubuntu gnome 17. apt update and I got "et/zesty 3.1.0-zesty1" but libprotobuf9v5 but it is not installable while installation.

[choman]

+1 on issue

sudo apt-get install et
Reading package lists... Done
Building dependency tree       
Reading state information... Done
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:
 et : Depends: libprotobuf9v5 but it is not installable
E: Unable to correct problems, you have held broken packages.