Cannot run Rails server locally

user_14427019 0
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I've been messing around with my rails project a little too much and now i can no longer run my rails server locally.

I try to run it like norma with rails server but it does not start.

Please take a look at the stack below, maybe someone can point out where i am going wrong?

Your Gemfile lists the gem pg (>= 0) more than once.
You should probably keep only one of them.
Remove any duplicate entries and specify the gem only once.
While it's not a problem now, it could cause errors if you change the version of one of them later.


Traceback (most recent call last):
        60: from bin/rails:2:in `<main>'
        59: from bin/rails:2:in `load'
        58: from /Users/linusmjorn/Documents/Projects/conference/conference/bin/spring:5:in `<top (required)>'
        57: from /Users/linusmjorn/Documents/Projects/conference/conference/bin/spring:5:in `tap'
        56: from /Users/linusmjorn/Documents/Projects/conference/conference/bin/spring:8:in `block in <top (required)>'
        55: from /Users/linusmjorn/Documents/Projects/conference/conference/bin/spring:8:in `require'
        54: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/lib/spring/binstub.rb:11:in `<top (required)>'
        53: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/lib/spring/binstub.rb:11:in `load'
        52: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/bin/spring:49:in `<top (required)>'
        51: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/lib/spring/client.rb:30:in `run'
        50: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/lib/spring/client/command.rb:7:in `call'
        49: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/lib/spring/client/rails.rb:28:in `call'
        48: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/spring-2.1.1/lib/spring/client/rails.rb:28:in `load'
        47: from /Users/linusmjorn/Documents/Projects/conference/conference/bin/rails:5:in `<top (required)>'
        46: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/dependencies.rb:332:in `require'
        45: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/dependencies.rb:299:in `load_dependency'
        44: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/dependencies.rb:332:in `block in require'
        43: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
        42: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
        41: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        40: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
        39: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
        38: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/commands.rb:18:in `<main>'
        37: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/command.rb:50:in `invoke'
        36: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/command/base.rb:69:in `perform'
        35: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/thor-1.1.0/lib/thor.rb:392:in `dispatch'
        34: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in `invoke_command'
        33: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/thor-1.1.0/lib/thor/command.rb:27:in `run'
        32: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/commands/server/server_command.rb:135:in `perform'
        31: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/commands/server/server_command.rb:135:in `tap'
        30: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/commands/server/server_command.rb:138:in `block in perform'
        29: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/dependencies.rb:332:in `require'
        28: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/dependencies.rb:299:in `load_dependency'
        27: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/dependencies.rb:332:in `block in require'
        26: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
        25: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
        24: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        23: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
        22: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/bootsnap-1.5.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
        21: from /Users/linusmjorn/Documents/Projects/conference/conference/config/application.rb:9:in `<main>'
        20: from /Users/linusmjorn/Documents/Projects/conference/conference/config/application.rb:11:in `<module:Conference>'
        19: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/railties-6.1.1/lib/rails/application.rb:96:in `inherited'
        18: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
        17: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/lazy_load_hooks.rb:51:in `each'
        16: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
        15: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/lazy_load_hooks.rb:66:in `execute_hook'
        14: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/lazy_load_hooks.rb:61:in `with_execution_control'
        13: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/activesupport-6.1.1/lib/active_support/lazy_load_hooks.rb:68:in `block in execute_hook'
        12: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/rails/railtie.rb:5:in `block in <class:Railtie>'
        11: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro.rb:23:in `load'
        10: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:36:in `load'
         9: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:42:in `each'
         8: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:32:in `configuration'
         7: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:64:in `global_configuration'
         6: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:56:in `raw_configuration'
         5: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:56:in `block in raw_configuration'
         4: from /Users/linusmjorn/.rvm/gems/ruby-2.7.0/gems/figaro-1.2.0/lib/figaro/application.rb:60:in `parse'
         3: from /Users/linusmjorn/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/psych.rb:277:in `load'
         2: from /Users/linusmjorn/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/psych.rb:390:in `parse'
         1: from /Users/linusmjorn/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/psych.rb:456:in `parse_stream'
/Users/linusmjorn/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/psych.rb:456:in `parse': (<unknown>): could not find expected ':' while scanning a simple key at line 14 column 1 (Psych::SyntaxError)
linusmjorn@Linuss-MBP-2 conference %

Any ideas? I'm even unsure as to what to google here.

Thanks!

ruby-on-rails ruby
2 Answers

Looking for possible clues in the error output:

1 - It's loading your application configuration:

20: from .../conference/conference/config/application.rb:11:in `<module:Conference>'

2 - From there it's loading figaro:

12: from .../gems/figaro-1.2.0/lib/figaro/rails/railtie.rb:5:in `block in <class:Railtie>'

3 - Figaro is parsing something:

 4: from .../figaro-1.2.0/lib/figaro/application.rb:60:in `parse'

4 - It's a YAML file (Psych is being used):

 ...psych.rb:456:in `parse':

5 - There's an error in this YAML file at line 14:

could not find expected ':' while scanning a simple key at line 14 column 1 (Psych::SyntaxError)

Now we can try to make a guess:

Figaro normally loads settings from config/application.yml. Have you checked for a typo there?

user_8236170

Your Gemfile lists the gem pg (>= 0) more than once.

Gems are sometimes placed under groups (e.g. test, development, and production). That way you can run bundle install on specific groups (Bundler docs reference).

Groups are typically written in the following format:

group :development do
  gem 'example1', '~> 1.23'
  gem 'example2', '> 1.00'
  gem 'example3', '>= 2.34'
end

You can think of gems that are not placed under a group as being in the global group. This means that they are accessible within all the groups defined in Gemfile.

What is likely happening here is that the pg gem is placed under the same group more than once.

So to possibly fix this:

  1. Go to Gemfile
  2. Remove the extra pg gems that are sharing the same group (keep only one per group)
  3. Run bundle install
  4. Run rails server
user_79749480
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