Running here Kubuntu 18.04 LTS.
FPC is installed, version 3.0.4, as is fpc-src, version 3.0.4-2, the one downloaded from Source Forge.
Trying to install lazarus-project_1.8.4-0_amd64.deb, the package installer QApt tells me in red :
"Error: Cannot satisfy dependencies"
Suggestions welcome, thanks.