[ARCHIVED] I can`t install canvas in my vps ( Ubuntu 18)

[TonyRuan]

Hello everybody !

Today, i installed canvas with tutorial in here

https://github.com/instructure/canvas-lms/wiki/Production-Start

But when run 

RAILS_ENV=production bundle exec rake canvas:compile_assets

And i get errror 

/var/canvas/vendor/bundle/ruby/2.6.0/gems/rake-13.0.3/exe/rake:27:in `<top (required)>'
Tasks: TOP => canvas:compile_assets
(See full trace by running task with --trace)

Same, i type 

sysadmin@appserver:/var/canvas$ RAILS_ENV=production bundle exec rake db:initial_setup

I get error message 

Tasks: TOP => db:migrate:predeploy
(See full trace by running task with --trace)

And my terminal not show 

Note that this initial setup will interactively prompt you to create an administrator account, the name for the default account, and whether to submit usage data to Instructure. The prompts can be "pre-filled" by setting the following environment variables:

Environment Variable	Value(s) supported
CANVAS_LMS_ADMIN_EMAIL	E-mail address used for default administrator login
CANVAS_LMS_ADMIN_PASSWORD	Password for default administrator login
CANVAS_LMS_ACCOUNT_NAME	Account name seen by users, usually your organization name
CANVAS_LMS_STATS_COLLECTION	opt_in, opt_out, or anonymized

Anybody,please help me

Thank you everybody, i need urgent