Problems installing sequence server


I’m having some challenges trying to install Sequence Server on my machine. My version of Ruby is: ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux] while my version of Rubygems is: 2.4.8

I get the following error after the Sequence Server installation command is entered:

$ sudo gem install sequenceserver

ERROR: Could not find a valid gem ‘sequenceserver’ (>= 0), here is why:
Unable to download data from - Errno::ETIMEDOUT: Connection timed out - connect(2) for “” port 443 (

I’ll be grateful for any suggest or clue on how to successfully install Sequence Server.

Kind regards,


Seems like a network issue. Maybe RubyGems server was temporarily down? Maybe you are behind a proxy and proxy url is not available to gem command?

– Priyam