Guard hangs in tmux?

[cmer]

This is the output I am getting:

❯ be guard -d
13:55:43 - DEBUG - Notiffany: gntp not available (Please add "gem 'ruby_gntp'" to your Gemfile and run your app with "bundle exec".).
13:55:43 - DEBUG - Notiffany: growl not available (Unsupported platform "linux").
13:55:43 - DEBUG - Notiffany: terminal_notifier not available (Unsupported platform "linux").
13:55:43 - DEBUG - Notiffany: libnotify not available (Please add "gem 'libnotify'" to your Gemfile and run your app with "bundle exec".).
13:55:43 - DEBUG - Command execution: which notify-send
13:55:43 - DEBUG - Command execution: {"ALTERNATE_EDITOR"=>"false"} emacsclient --eval '1'
13:55:43 - DEBUG - Notiffany: emacs not available (Emacs client failed).
13:55:43 - DEBUG - Command execution: tmux -V
13:55:43 - DEBUG - Notiffany: file not available (No :path option given).
13:55:43 - DEBUG - Command execution: which notify-send
13:55:43 - DEBUG - Command execution: tmux -V
13:55:43 - DEBUG - Notiffany is using NotifySend to send notifications.
13:55:43 - DEBUG - Notiffany is using Tmux to send notifications.
13:55:43 - DEBUG - Command execution: tmux list-clients -F '#{client_tty}'

[olivereri]

@e2 I'm seeing this issue as well and I spent the past hour searching around for and implementing resolutions without success. I added the ruby_gntp gem that clears up some of the original posters errors but I'm still stuck at this:

$ bundle exec guard --debug
17:09:52 - DEBUG - Command execution: {"ALTERNATE_EDITOR"=>"false"} emacsclient --eval '1'
17:09:52 - DEBUG - Notiffany: emacs not available (Emacs client failed).
17:09:52 - DEBUG - Command execution: tmux -V
17:09:52 - DEBUG - Notiffany: file not available (No :path option given).
17:09:52 - DEBUG - Command execution: tmux -V
17:09:52 - DEBUG - Notiffany is using GNTP to send notifications.
17:09:52 - DEBUG - Notiffany is using Tmux to send notifications.
17:09:52 - DEBUG - Command execution: tmux list-clients -F '#{client_tty}'

I really don't know where to go from here. I'm running on 22.04.1-Ubuntu on AWS Cloud9. This is my Gemfile:

source "https://rubygems.org"
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby "3.1.2"

gem "rails",                      "7.0.4"
gem "image_processing",           "1.12.2"
gem "active_storage_validations", "0.9.8"
gem "bcrypt",                     "3.1.18"
gem "faker",                      "2.21.0"
gem "will_paginate",              "3.3.1"
gem "bootstrap-will_paginate",    "1.0.0"
gem "bootstrap-sass",             "3.4.1"
gem "sassc-rails",                "2.1.2"
gem "sprockets-rails",            "3.4.2"
gem "importmap-rails",            "1.1.0"
gem "turbo-rails",                "1.1.1"
gem "stimulus-rails",             "1.0.4"
gem "jbuilder",                   "2.11.5"
gem "puma",                       "5.6.4"
gem "bootsnap",                   "1.12.0", require: false
gem 'uglifier',       '3.0.0'
gem 'jquery-rails',   '4.1.1'

group :development, :test do
  gem "sqlite3", "1.4.2"
  gem "debug",   "1.5.0", platforms: %i[ mri mingw x64_mingw ]
  gem 'byebug',  '9.0.0', platform: :mri
  gem "ruby_gntp",                  "0.3.4"
end

group :development do
  gem "web-console", "4.2.0"
  gem 'listen',                '3.0.8'
  gem 'spring',                '1.7.1'
  gem 'spring-watcher-listen', '2.0.0'
end

group :test do
  gem "capybara",                 "3.37.1"
  gem "selenium-webdriver",       "4.2.0"
  gem "webdrivers",               "5.0.0"
  gem "rails-controller-testing", "1.0.5"
  gem "minitest",                 "5.15.0"
  gem "minitest-reporters",       "1.5.0"
  gem "guard",                    "2.18.0"
  gem "guard-minitest",           "2.4.6"
  gem "notiffany"
end

group :production do
  gem "pg",         "1.3.5"
  gem "aws-sdk-s3", "1.114.0", require: false
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem.
# Uncomment the following line if you're running Rails
# on a native Windows system:
# gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]

I'm following along this course, so someone got Guard working on AWS cloud 9:
https://www.learnenough.com/course/ruby_on_rails_tutorial_7th_edition/static_pages/advanced_testing_setup/guard