WARN: Unresolved specs during Gem::Specification.reset:

C:\Users\Anuradha-PC\Desktop\Ruby\Jobs_board2>rails g rspec:install Looks like your app's ./bin/rails is a stub that was generated by Bundler.

In Rails 5, your app's bin/ directory contains executables that are versioned like any other source code, rather than stubs that are generated on demand.

Here's how to upgrade:

bundle config --delete bin # Turn off Bundler's stub generator rails app:update:bin # Use the new Rails 5 executables git add bin # Add bin/ to source control

You may need to remove bin/ from your .gitignore as well.

When you install a gem whose executable you want to use in your app, generate it and add it to source control:

bundle binstubs some-gem-name git add bin/new-executable

WARN: Unresolved specs during Gem::Specification.reset:
      i18n (~> 0.7)
      minitest (~> 5.1)
      rack (~> 2.0)
      rack-test (>= 0.6.3)
      nokogiri (>= 1.5.9, >= 1.6)
      rake (>= 0.8.7)
      method_source (>= 0)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
      create  .rspec
      create  spec
C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:253:in `mkdir': Invalid argument @ dir_s_mkdir - C:/Users/Anuradha-PC/Desktop/Ruby/Jobs_board2/spec/C: (Errno::EINVAL)
        from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:253:in `fu_mkdir'
        from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:227:in `block (2 levels) in mkdir_p'
        from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:225:in `reverse_each'
        from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:225:in `block in mkdir_p'
        from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:211:in `each'
        from C:/Ruby23-x64/lib/ruby/2.3.0/fileutils.rb:211:in `mkdir_p'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/create_file.rb:62:in `block in invoke!'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/empty_directory.rb:117:in `invoke_with_conflict_check'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/create_file.rb:60:in `invoke!'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions.rb:94:in `action'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/create_file.rb:25:in `create_file'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/file_manipulation.rb:26:in `copy_file'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/directory.rb:94:in `block in execute!'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/directory.rb:80:in `each'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/directory.rb:80:in `execute!'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/directory.rb:66:in `invoke!'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions.rb:94:in `action'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/actions/directory.rb:52:in `directory'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/rspec-rails-3.7.2/lib/generators/rspec/install/install_generator.rb:23:in `block in copy_spec_files'
        from C:/Ruby23-x64/lib/ruby/2.3.0/tmpdir.rb:89:in `mktmpdir'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/rspec-rails-3.7.2/lib/generators/rspec/install/install_generator.rb:20:in `copy_spec_files'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `block in invoke_all'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `each'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `map'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `invoke_all'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/group.rb:232:in `dispatch'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/base.rb:466:in `start'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/generators.rb:269:in `invoke'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/generate/generate_command.rb:24:in `perform'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands.rb:16:in `<top (required)>'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/app_loader.rb:46:in `require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/app_loader.rb:46:in `block in exec_app'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/app_loader.rb:35:in `loop'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/app_loader.rb:35:in `exec_app'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/cli.rb:5:in `<top (required)>'
        from C:/Ruby23-x64/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `require'
        from C:/Ruby23-x64/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `rescue in require'
        from C:/Ruby23-x64/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:40:in `require'
        from C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/railties-5.1.4/exe/rails:9:in `<top (required)>'
        from C:/Ruby23-x64/bin/rails:22:in `load'
        from C:/Ruby23-x64/bin/rails:22:in `<main>'

how may i solve this issue?, could you please help me to sort out this issue