Unknown database 'redmine_development'

[zen-zla]

Hi
########
Environment:
Redmine version: 4.0.4.stable
Ruby version : 2.6.3-p62 (2019-04-16) [x86_64-linux]
Rails version : 5.2.3
Environment : production
Database adapter: Mysql2
Mailer queue : ActiveJob::QueueAdapters::AsyncAdapter
Mailer delivery : sendmail
SCM:
Subversion : 1.7.14
Git: 1.8.3.1

Redmine plugins:
redmine_ldap_sync : 2.2.0
redmine_stealth: 0.7.4
########

When I use : rake redmine:plugins

I Have error
rake aborted!
ActiveRecord::NoDatabaseError: Unknown database 'redmine_development'

solution ?

Thank's

[tofi86]

You don#t even have my plugin redmine_maintenance_mode installed. Or does this error appear when you try to install it?

If so, who told you to run rake redmine:plugins?
The README file says:

You have to run the plugin rake task to provide the assets (from the Redmine root directory):
$ rake redmine:plugins:migrate RAILS_ENV=production

If you ran this task and the error is unknown database, I think you misconfigured your database configuration in config/database.yml

Did you blindly ran the command from above (for PRODUCTION environment) without having specified a production database? Probably you need to run it for rails env development?