Error installing about ‘can't find gem sequenceserver’

sequenceserver
#1

I seem to have successfully installed SequenceServer.

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But an error occurred while running the program. I first came into contact with SequenceServer and have no idea how to fix it.

[root@localhost /]# sequenceserver
/usr/local/lib/ruby/site_ruby/3.2.0/rubygems.rb:263:in find_spec_for_exe': can't find gem sequenceserver (>= 0.a) with executable sequenceserver (Gem::GemNotFoundException) from /usr/local/lib/ruby/site_ruby/3.2.0/rubygems.rb:282:in activate_bin_path’
from /usr/local/bin/sequenceserver:25:in ‘main’