uninitialized constant Neo4j when using neo4j-rspec

[suriyalakshmip]

Failure/Error: config.include Neo4j::RSpec::Matchers

NameError: uninitialized constant Neo4j ./spec/spec_helper.rb:21:in block in <top (required)>' ./spec/spec_helper.rb:20:in<top (required)>' ./spec/rails_helper.rb:2:in require' ./spec/rails_helper.rb:2:in<top (required)>'

[wjdhamilton]

I have the same problem. Created a new Rails project as per instructions from neo4jrb and neo4j-rspec READMEs. Upon calling rake neo4j:migrate RAILS_ENV=test, I get the following error:

NameError: uninitialized constant Neo4j::RSpec::Matchers                                                              
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:79:in `block in load_missing_constant'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:8:in `without_bootsnap_cache'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:79:in `rescue in load_missing_constant'   
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:59:in `load_missing_constant'
/Users/jameshamilton/sites/rspec-neo4j-error/config/environments/test.rb:43:in `block in <main>'                                                       
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/railtie.rb:216:in `instance_eval'                          
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/railtie.rb:216:in `configure'               
/Users/jameshamilton/sites/rspec-neo4j-error/config/environments/test.rb:1:in `<main>'                                     
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'                       
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'               
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/engine.rb:602:in `block (2 levels) in <class:Engine>'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/engine.rb:601:in `each'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/engine.rb:601:in `block in <class:Engine>'                 
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:32:in `instance_exec'                                                
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:32:in `run'                              
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:61:in `block in run_initializers'                           
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:50:in `each'                              
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:50:in `tsort_each_child'            
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:60:in `run_initializers'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/application.rb:361:in `initialize!'       
/Users/jameshamilton/sites/rspec-neo4j-error/config/environment.rb:5:in `<main>'                                
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/application.rb:337:in `require_environment!'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/application.rb:520:in `block in run_tasks_blocks'                                 
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/neo4j-9.2.4/lib/neo4j/tasks/migration.rake:45:in `block (2 levels) in <main>'                       
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'                                                                    
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `eval'                                                                   
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `<main>'  

Caused by:                                                                                                            
NameError: uninitialized constant Neo4j::RSpec::Matchers                                                                   
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:60:in `block in load_missing_constant'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:16:in `allow_bootsnap_retry'              
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/active_support.rb:59:in `load_missing_constant'
/Users/jameshamilton/sites/rspec-neo4j-error/config/environments/test.rb:43:in `block in <main>'                                                       
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/railtie.rb:216:in `instance_eval'                          
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/railtie.rb:216:in `configure'                        
/Users/jameshamilton/sites/rspec-neo4j-error/config/environments/test.rb:1:in `<main>'           
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/engine.rb:602:in `block (2 levels) in <class:Engine>'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/engine.rb:601:in `each'                  
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/engine.rb:601:in `block in <class:Engine>'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:32:in `instance_exec'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:32:in `run'                               
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:61:in `block in run_initializers'                                    
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:50:in `each'                             
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:50:in `tsort_each_child'                                    
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/initializable.rb:60:in `run_initializers'                  
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/application.rb:361:in `initialize!'         
/Users/jameshamilton/sites/rspec-neo4j-error/config/environment.rb:5:in `<main>'                                                                            
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'              
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'               
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/bootsnap-1.4.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/application.rb:337:in `require_environment!'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/railties-5.2.2.1/lib/rails/application.rb:520:in `block in run_tasks_blocks'
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/neo4j-9.2.4/lib/neo4j/tasks/migration.rake:45:in `block (2 levels) in <main>'                                
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'                                                                    
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `eval'                                                                   
/Users/jameshamilton/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `<main>'                                                                     
Tasks: TOP => neo4j:migrate:all => environment                                                                                       
(See full trace by running task with --trace)                 

I have set up a repository that replicates the problem at my end:

https://github.com/wjdhamilton/rspec-neo4j-error

Thanks for your help

[petrosp]

Perhaps this may prove helpful: https://github.com/sineed/neo4j-rspec/issues/15#issuecomment-225118649