Redmine

I try to install new redmine with mysql Database on a remote maschine . This fails when I try to generate a secret token.
Same thing happens at next step when I try to generate a database structure.
step 1:
bundle exec rake generate_secret_token
You have requested:
mime-types ~> 3.0

The bundle currently has mime-types locked at 2.99.1.
Try running `bundle update mime-types`

If you are updating multiple gems in your Gemfile at once,
try passing them all to `bundle update`
Run `bundle install` to install missing gems.

The bundle update succeeds fine itself.

But the following step fails:
RAILS_ENV=production exec rake db:migrate
You have requested:
mime-types ~> 3.0

The bundle currently has mime-types locked at 2.99.1.
Try running `bundle update mime-types`

If you are updating multiple gems in your Gemfile at once,
try passing them all to `bundle update`
Run `bundle install` to install missing gems.

What is wrong?