Ruby on rails 此错误消息中发生了什么，我如何解决它？
我是Ruby新手，我完全不知道如何解决我收到的这个错误。如果有人能解释错误是什么，那就太棒了Ruby on rails 此错误消息中发生了什么，我如何解决它？,ruby-on-rails,ruby,Ruby On Rails,Ruby,我是Ruby新手，我完全不知道如何解决我收到的这个错误。如果有人能解释错误是什么，那就太棒了 Traceback (most recent call last): 21: from bin/rails:4:in `<main>' 20: from bin/rails:4:in `require' 19: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rail
Traceback (most recent call last):
21: from bin/rails:4:in `<main>'
20: from bin/rails:4:in `require'
19: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands.rb:16:in `<top (required)>'
18: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command.rb:44:in `invoke'
17: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command/base.rb:63:in `perform'
16: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor.rb:392:in `dispatch'
15: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in `invoke_command'
14: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/command.rb:27:in `run'
13: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in `perform'
12: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in `tap'
11: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:in `block in perform'
10: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:in `require'
9: from D:/[Dearest_Lord_God,_please_intuitively_reveal_the_things_that_used_to_baffle_me]/[Projects-React]/rails-react/open-flights/config/application.rb:7:in `<top (required)>'
8: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler.rb:174:in `require'
7: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in `require'
6: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in `each'
5: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in `block in require'
4: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in `each'
3: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in `block (2 levels) in require'
2: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in `require'
1: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:4:in `<top (required)>'
C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:4:in `require': cannot load such file -- pg_ext (LoadError)
22: from bin/rails:4:in `<main>'
21: from bin/rails:4:in `require'
20: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands.rb:16:in `<top (required)>'
19: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command.rb:44:in `invoke'
18: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command/base.rb:63:in `perform'
17: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor.rb:392:in `dispatch'
16: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in `invoke_command'
15: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/command.rb:27:in `run'
14: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in `perform'
13: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in `tap'
12: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:in `block in perform'
11: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:in `require'
10: from D:/[Dearest_Lord_God,_please_intuitively_reveal_the_things_that_used_to_baffle_me]/[Projects-React]/rails-react/open-flights/config/application.rb:7:in `<top (required)>'
9: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler.rb:174:in `require'
8: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in `require'
7: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in `each'
6: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in `block in require'
5: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in `each'
4: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in `block (2 levels) in require'
3: from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in `require'
2: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:3:in `<top (required)>'
1: from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:14:in `rescue in <top (required)>'
C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:14:in `require': cannot load such file -- 2.7/pg_ext (LoadError)
回溯（最近一次呼叫最后一次）：
21：从箱子/轨道：4:in`'
20:从箱子/轨道：4:在'require'中
19:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands.rb:16:in`'
18:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command.rb:44:in'invoke'
17:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command/base.rb:63:in'perform'
16:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor.rb:392:in'dispatch'
15:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in“invoke_命令”
14:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/command.rb:27:in'run'
13:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in'perform'
12:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in'tap'
11:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:在“执行中的块”中
10:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:in'require'
9：来自D:/[最亲爱的上帝，请你直观地展示你用来迷惑我的东西]/[项目反应]/rails反应/开放航班/配置/应用程序。rb:7:in`'
8:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler.rb:174:in'require'
7:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in'require'
6:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in'each'
5:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in'block in require'
4:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in'each'
3:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in'block（2层）in require'
2:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in'require'
1:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:4:in`'
C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:4:在“require”中：无法加载此类文件--pg_ext（LoadError）
22：从箱子/轨道：4:in`'
21:从箱子/轨道：4:在'require'中
20:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands.rb:16:in`'
19:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command.rb:44:in'invoke'
18:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/command/base.rb:63:in'perform'
17:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor.rb:392:in'dispatch'
16:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in'invoke_命令'
15:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/thor-1.1.0/lib/thor/command.rb:27:in'run'
14:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in'perform'
13:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:130:in'tap'
12:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:在“执行中的块”中
11:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/railties-5.1.7/lib/rails/commands/server/server_command.rb:133:in'require'
10：来自D:/[最亲爱的上帝，请你直观地展示你用来迷惑我的东西]/[项目反应]/rails反应/开放航班/config/application.rb:7:in`'
9:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler.rb:174:in'require'
8:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in'require'
7:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:58:in'each'
6:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in'block in require'
5:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:69:in'each'
4:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in'block（2层）in require'
3:from C:/Ruby27-x64/lib/ruby/2.7.0/bundler/runtime.rb:74:in'require'
2:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:3:in`'
1:from C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:14:in'rescue in'
C:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/pg-0.19.0-x64-mingw32/lib/pg.rb:14:在“require”中：无法加载此类文件--2.7/pg_ext（LoadError）
gem安装pg