'kernel_require.rb:15:in `require': cannot load such file -- 3.0/pg_ext (LoadError)

C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:15:in `require': cannot load such file -- 3.0/pg_ext (LoadError)
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:15:in `require'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/pg-0.18.4-x64-mingw32/lib/pg.rb:14:in `rescue in <main>'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/pg-0.18.4-x64-mingw32/lib/pg.rb:3:in `<main>'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from C:/Ruby30-x64/lib/ruby/site_ruby/3.0.0/bundler/runtime.rb:60:in `block (2 levels) in require'
        from C:/Ruby30-x64/lib/ruby/site_ruby/3.0.0/bundler/runtime.rb:55:in `each'
        from C:/Ruby30-x64/lib/ruby/site_ruby/3.0.0/bundler/runtime.rb:55:in `block in require'
        from C:/Ruby30-x64/lib/ruby/site_ruby/3.0.0/bundler/runtime.rb:44:in `each'
        from C:/Ruby30-x64/lib/ruby/site_ruby/3.0.0/bundler/runtime.rb:44:in `require'
        from C:/Ruby30-x64/lib/ruby/site_ruby/3.0.0/bundler.rb:176:in `require'
        from D:/Onl_course/Ruby/David_Battersby/instagram-clone/config/application.rb:7:in `<main>'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/railties-7.0.1/lib/rails/commands/server/server_command.rb:137:in `block in perform'
        from <internal:kernel>:90:in `tap'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/railties-7.0.1/lib/rails/commands/server/server_command.rb:134:in `perform'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/railties-7.0.1/lib/rails/command/base.rb:87:in `perform'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/railties-7.0.1/lib/rails/command.rb:48:in `invoke'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/railties-7.0.1/lib/rails/commands.rb:18:in `<main>'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/bootsnap-1.10.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
ruby-on-railsruby


Solution 1:[1]

From what I understand, on Unix there is a misleading error of "File does not exist" when loading a shared module, when dependencies of such a shared module don't exist. It may also be a case here.

An obvious dependency that's missing is Postgresql client libraries. You should install Postgresql to attempt to solve this problem.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 hmdne

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