Works :D i had to install libssh2-1 to get everything to install. popos! (Ubuntu based) my guess is same apply to ubuntu :D
I am running Linux Ubuntu Pop!_OS 19.04 as well, and seems like a similarly named package is missing, `libssh2.so.1`? Do you think that is the same one? Perhaps you could hint me how exactly you did install it? Thanks a lot! :-)
Also running Pop_OS! here (19.04). Using some of the earlier posts I got it working after doing the following. If the last command doesn't work, run 'apt --fix-broken install' and try the last command again. After doing this it started working for me!
The reason for this is, as far as I understand it, is that there is a missing patch in the libcurl3-gnutls package in Ubuntu based distributions. However Debian has patched their version of the package. And so installing their version of the package (and its needed dependencies) will get it working.