the generation of migration in the rails hangs, and after that it gives the following error:
'Starting Spring server with `/home/chelosobaka/.rvm/gems/ruby-2.3.2/gems/spring-2.0.2/bin/spring server --background` timed out after 20 seconds.' Os ubuntu, help me solve the problem, I shovel the Internet, I really did not find anything.
bundle exec rake db:migrate- Vetal4eg