Having trouble deploying rails application on a server - ruby-on-rails

Question

I am having trouble deploying my rails application with puma and capistrano on my server. Also I am using
https://mattbrictson.com/build-and-deploy-a-rails-vps-part-2
as a reference guide
But when I try to run bundle exec cap production deploy
I will get the following error message:
The deploy has failed with an error: Exception while executing as deployer#SERVER: bundle exit status: 16
bundle stdout: Your bundle only supports platforms ["x86-mingw32"] but your local platforms are["ruby", "x86_64-linux"], and there's no compatible match between those two lists.
Which is strange since when I run: bundle platform
I get:
Your platform is: x86_64-linux-gnu
Your app has gems that work on these platforms:
* ruby
Your Gemfile does not specify a Ruby version requirement.
And the Gemfile.lock contains the following:
GIT
remote: git://github.com/capistrano/rbenv.git
revision: 65db3295752d079bf8cf874dab36b16ab45454b7
specs:
capistrano-rbenv (2.1.1)
capistrano (~> 3.1)
sshkit (~> 1.3)
GEM
remote: https://rubygems.org/
specs:
actioncable (5.0.3)
actionpack (= 5.0.3)
nio4r (>= 1.2, < 3.0)
websocket-driver (~> 0.6.1)
actionmailer (5.0.3)
actionpack (= 5.0.3)
actionview (= 5.0.3)
activejob (= 5.0.3)
mail (~> 2.5, >= 2.5.4)
rails-dom-testing (~> 2.0)
actionpack (5.0.3)
actionview (= 5.0.3)
activesupport (= 5.0.3)
rack (~> 2.0)
rack-test (~> 0.6.3)
rails-dom-testing (~> 2.0)
rails-html-sanitizer (~> 1.0, >= 1.0.2)
actionview (5.0.3)
activesupport (= 5.0.3)
builder (~> 3.1)
erubis (~> 2.7.0)
rails-dom-testing (~> 2.0)
rails-html-sanitizer (~> 1.0, >= 1.0.3)
activeadmin (1.0.0)
arbre (>= 1.1.1)
bourbon
coffee-rails
formtastic (~> 3.1)
formtastic_i18n
inherited_resources (~> 1.7)
jquery-rails
jquery-ui-rails
kaminari (>= 0.15, < 2.0)
railties (>= 4.2, < 5.2)
ransack (~> 1.3)
sass-rails
sprockets (< 4.1)
activejob (5.0.3)
activesupport (= 5.0.3)
globalid (>= 0.3.6)
activemodel (5.0.3)
activesupport (= 5.0.3)
activerecord (5.0.3)
activemodel (= 5.0.3)
activesupport (= 5.0.3)
arel (~> 7.0)
activesupport (5.0.3)
concurrent-ruby (~> 1.0, >= 1.0.2)
i18n (~> 0.7)
minitest (~> 5.1)
tzinfo (~> 1.1)
airbrussh (1.2.0)
sshkit (>= 1.6.1, != 1.7.0)
arbre (1.1.1)
activesupport (>= 3.0.0)
arel (7.1.4)
bcrypt (3.1.11)
bindex (0.5.0)
bourbon (4.3.4)
sass (~> 3.4)
thor (~> 0.19)
builder (3.2.3)
byebug (9.0.6)
capistrano (3.8.1)
airbrussh (>= 1.0.0)
i18n
rake (>= 10.0.0)
sshkit (>= 1.9.0)
capistrano-bundler (1.2.0)
capistrano (~> 3.1)
sshkit (~> 1.2)
capistrano-rails (1.2.3)
capistrano (~> 3.1)
capistrano-bundler (~> 1.1)
capistrano3-puma (3.1.0)
capistrano (~> 3.7)
capistrano-bundler
puma (~> 3.4)
coffee-rails (4.2.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.2.x)
coffee-script (2.4.1)
coffee-script-source
execjs
coffee-script-source (1.12.2)
concurrent-ruby (1.0.5)
devise (4.3.0)
bcrypt (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 4.1.0, < 5.2)
responders
warden (~> 1.2.3)
erubis (2.7.0)
execjs (2.7.0)
formtastic (3.1.5)
actionpack (>= 3.2.13)
formtastic_i18n (0.6.0)
globalid (0.4.0)
activesupport (>= 4.2.0)
haml (5.0.1)
temple (>= 0.8.0)
tilt
has_scope (0.7.1)
actionpack (>= 4.1, < 5.2)
activesupport (>= 4.1, < 5.2)
i18n (0.8.1)
inherited_resources (1.7.2)
actionpack (>= 3.2, < 5.2.x)
has_scope (~> 0.6)
railties (>= 3.2, < 5.2.x)
responders
jbuilder (2.6.4)
activesupport (>= 3.0.0)
multi_json (>= 1.2)
jquery-rails (4.3.1)
rails-dom-testing (>= 1, < 3)
railties (>= 4.2.0)
thor (>= 0.14, < 2.0)
jquery-ui-rails (6.0.1)
railties (>= 3.2.16)
kaminari (1.0.1)
activesupport (>= 4.1.0)
kaminari-actionview (= 1.0.1)
kaminari-activerecord (= 1.0.1)
kaminari-core (= 1.0.1)
kaminari-actionview (1.0.1)
actionview
kaminari-core (= 1.0.1)
kaminari-activerecord (1.0.1)
activerecord
kaminari-core (= 1.0.1)
kaminari-core (1.0.1)
loofah (2.0.3)
nokogiri (>= 1.5.9)
mail (2.6.5)
mime-types (>= 1.16, < 4)
method_source (0.8.2)
mime-types (3.1)
mime-types-data (~> 3.2015)
mime-types-data (3.2016.0521)
mini_portile2 (2.1.0)
minitest (5.10.2)
multi_json (1.12.1)
net-scp (1.2.1)
net-ssh (>= 2.6.5)
net-ssh (4.1.0)
nio4r (2.0.0)
nokogiri (1.7.2)
mini_portile2 (~> 2.1.0)
orm_adapter (0.5.0)
polyamorous (1.3.1)
activerecord (>= 3.0)
puma (3.8.2)
rack (2.0.3)
rack-test (0.6.3)
rack (>= 1.0)
rails (5.0.3)
actioncable (= 5.0.3)
actionmailer (= 5.0.3)
actionpack (= 5.0.3)
actionview (= 5.0.3)
activejob (= 5.0.3)
activemodel (= 5.0.3)
activerecord (= 5.0.3)
activesupport (= 5.0.3)
bundler (>= 1.3.0, < 2.0)
railties (= 5.0.3)
sprockets-rails (>= 2.0.0)
rails-dom-testing (2.0.3)
activesupport (>= 4.2.0)
nokogiri (>= 1.6)
rails-html-sanitizer (1.0.3)
loofah (~> 2.0)
railties (5.0.3)
actionpack (= 5.0.3)
activesupport (= 5.0.3)
method_source
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (12.0.0)
ransack (1.8.2)
actionpack (>= 3.0)
activerecord (>= 3.0)
activesupport (>= 3.0)
i18n
polyamorous (~> 1.3)
responders (2.4.0)
actionpack (>= 4.2.0, < 5.3)
railties (>= 4.2.0, < 5.3)
sass (3.4.24)
sass-rails (5.0.6)
railties (>= 4.0.0, < 6)
sass (~> 3.1)
sprockets (>= 2.8, < 4.0)
sprockets-rails (>= 2.0, < 4.0)
tilt (>= 1.1, < 3)
sprockets (3.7.1)
concurrent-ruby (~> 1.0)
rack (> 1, < 3)
sprockets-rails (3.2.0)
actionpack (>= 4.0)
activesupport (>= 4.0)
sprockets (>= 3.0.0)
sqlite3 (1.3.13)
sshkit (1.13.1)
net-scp (>= 1.1.2)
net-ssh (>= 2.8.0)
temple (0.8.0)
thor (0.19.4)
thread_safe (0.3.6)
tilt (2.0.7)
turbolinks (5.0.1)
turbolinks-source (~> 5)
turbolinks-source (5.0.3)
tzinfo (1.2.3)
thread_safe (~> 0.1)
tzinfo-data (1.2017.2)
tzinfo (>= 1.0.0)
uglifier (3.2.0)
execjs (>= 0.3.0, < 3)
warden (1.2.7)
rack (>= 1.0)
web-console (3.5.1)
actionview (>= 5.0)
activemodel (>= 5.0)
bindex (>= 0.4.0)
railties (>= 5.0)
websocket-driver (0.6.5)
websocket-extensions (>= 0.1.0)
websocket-extensions (0.1.2)
PLATFORMS
ruby
DEPENDENCIES
activeadmin
byebug
capistrano (~> 3.0)
capistrano-bundler
capistrano-rails
capistrano-rbenv!
capistrano3-puma
coffee-rails (~> 4.2)
devise
haml
jbuilder (~> 2.5)
jquery-rails
puma (~> 3.0)
rails (~> 5.0.0)
sass-rails (~> 5.0)
sqlite3
turbolinks (~> 5)
tzinfo-data
uglifier (>= 1.3.0)
web-console
BUNDLED WITH
1.14.6
What am I doing wrong? Did I forget something?

Answer 1

Can you try to add ruby version in your Gemfile?
ruby '2.3.3' // or whatever your ruby version is