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I'm on windows 10 and i'm using microsoft sql server. Here's the error I get in cmd when I run command "Rails server":

Traceback (most recent call last):
    59: from bin/rails:4:in `<main>'
    58: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `require'
    57: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency'
    56: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `block in require'
    55: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
    54: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
    53: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
    52: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
    51: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
    50: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands.rb:18:in `<top (required)>'
    49: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/command.rb:46:in `invoke'
    48: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/command/base.rb:65:in `perform'
    47: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
    46: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
    45: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
    44: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:142:in `perform'
    43: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:142:in `tap'
    42: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:145:in `block in perform'
    41: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `require'
    40: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency'
    39: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `block in require'
    38: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
    37: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
    36: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
    35: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
    34: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
    33: from C:/Users/My Comp/RubyProjects/Project1/config/application.rb:7:in `<top (required)>'
    32: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler.rb:114:in `require'
    31: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:65:in `require'
    30: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:65:in `each'
    29: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:76:in `block in require'
    28: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:76:in `each'
    27: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:81:in `block (2 levels) in require'
    26: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
    25: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
    24: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
    23: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
    22: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
    21: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activerecord-sqlserver-adapter-2.3.8/lib/activerecord-sqlserver-adapter.rb:1:in `<top (required)>'
    20: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `require'
    19: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency'
    18: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `block in require'
    17: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
    16: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
    15: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
    14: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
    13: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
    12: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activerecord-sqlserver-adapter-2.3.8/lib/active_record/connection_adapters/sqlserver_adapter.rb:3:in `<top (required)>'
    11: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `require'
    10: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency'
     9: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `block in require'
     8: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
     7: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
     6: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
     5: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
     4: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
     3: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activerecord-sqlserver-adapter-2.3.8/lib/active_record/connection_adapters/sqlserver_adapter/core_ext/active_record.rb:145:in `<top (required)>'
     2: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activerecord-sqlserver-adapter-2.3.8/lib/active_record/connection_adapters/sqlserver_adapter/core_ext/active_record.rb:145:in `include'
     1: from D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activerecord-sqlserver-adapter-2.3.8/lib/active_record/connection_adapters/sqlserver_adapter/core_ext/active_record.rb:12:in `included'
     D:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/activerecord-sqlserver-adapter-2.3.8/lib/active_record/connection_adapters/sqlserver_adapter/core_ext/active_record.rb:13:in `singleton class': undefined method `alias_method_chain' for #<Class:ActiveRecord::Base> (NoMethodError)
     Did you mean?  alias_method
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  • 1
    This is the important part in all that I believe, at the very end of the error output it says: 'singleton class': undefined method 'alias_method_chain' for #<Class:ActiveRecord::Base> (NoMethodError) Did you mean? alias_method . Maybe this, or at least it is a start : stackoverflow.com/questions/15987761/… Commented Oct 28, 2018 at 20:14
  • Its hard to assist you in troubleshooting if you don't share what you were last working on. With limited information to go on, please post your schema.rb file and all other relevant files you were working on right up to the point you got to this error. Commented Nov 1, 2018 at 12:55

1 Answer 1

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The error is because gem adapter for Rails 5x is to obsolete, you have to use this gem 'activerecord-sqlserver-adapter', '~> 5.1', '>= 5.1.6', this may help you.

I have fix this error on the linux system (Ubuntu) and must have gem 'tiny_tds' installed in the system.

if you have gem 'tiny_tds' error installation for linux you should look at this medium_publish

I hope this help you.

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