Hi Reza,
On Tue, Apr 14, 2020 at 04:24:06PM +0000, Reza Hosseini wrote:
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
This has nothing at all to do with Osmocom. If you wan to develop/build software on Debian/Ubuntu type operating systems, I suggest you become more familiar with the apt / dpkg package management system. It seems too processes are simultaneously trying to install/remove packages.