Hello, some more info Giovanni Biscuolo writes: [...] > --8<---------------cut here---------------start------------->8--- > > giovanni@roquette: tj3client -c .taskjugglerrc add tutorial.tjp > TaskJuggler v3.7.1 - A Project Management Software > > Exception `SecurityError' at /gnu/store/1rslmq79i0lwccxqfh4cv1shbv5hchkq-ruby-taskjuggler-3.7.1/lib/ruby/vendor_ruby/gems/taskjuggler-3.7.1/lib/taskjuggler/TjTime.rb:80 - Insecure operation - []= > Warning: Projects(s) project-001.tjp could not be added > > --8<---------------cut here---------------end--------------->8--- If I comment out the "timezone" keyword in tutorial.tjp the project is loaded (and I can see it in the localhost web interface). Anyway, for all connections, the tj3d daemon shows this exception: --8<---------------cut here---------------start------------->8--- Exception `DRb::DRbConnError' at /gnu/store/yw250lzn7ii8vlm5gqk4ylzgy9jg8ii3-ruby-2.6.5/lib/ruby/2.6.0/drb/drb.rb:578 - connection closed --8<---------------cut here---------------end--------------->8--- I'm not expert in Ruby so I don't know where to investigate for this. Happy hacking, Gio' -- Giovanni Biscuolo Xelera IT Infrastructures