新的rvm安裝和捆綁安裝后，Rails服務器未運行

Question

好的，我只是運行捆綁安裝程序，當我嘗試使用“ rails s”運行我的rails服務器時，出現以下錯誤消息：

rails s
/home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/tmpdir.rb:85:in `mkdir': ERROR: Failed to build gem native extension. (Gem::Ext::BuildError)

    Permission denied @ dir_s_mkdir - ./.gem.20140807-24550-jnrbg

Gem files will remain installed in /home/john/.rvm/gems/ruby-2.1.1/gems/bcrypt-3.1.7 for inspection.
Results logged to /home/john/.rvm/gems/ruby-2.1.1/extensions/x86-linux/2.1.0/bcrypt-3.1.7/gem_make.out
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/tmpdir.rb:85:in `block in mktmpdir'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/tmpdir.rb:142:in `create'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/tmpdir.rb:85:in `mktmpdir'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/ext_conf_builder.rb:14:in `build'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:161:in `block (2 levels) in build_extension'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:160:in `chdir'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:160:in `block in build_extension'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:159:in `synchronize'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:159:in `build_extension'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:198:in `block in build_extensions'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:195:in `each'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/ext/builder.rb:195:in `build_extensions'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/specification.rb:1436:in `block in build_extensions'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/user_interaction.rb:45:in `use_ui'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/specification.rb:1434:in `build_extensions'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/stub_specification.rb:60:in `build_extensions'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/basic_specification.rb:56:in `contains_requirable_file?'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/specification.rb:925:in `block in find_inactive_by_path'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/specification.rb:924:in `each'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/specification.rb:924:in `find'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/specification.rb:924:in `find_inactive_by_path'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems.rb:185:in `try_activate'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:132:in `rescue in require'
    from /home/john/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:144:in `require'
    from /home/john/.rvm/gems/ruby-2.1.1/bin/ruby_executable_hooks:9:in `<main>'

我也嘗試過運行gem install rails separatley，以期解決此問題，但那沒有用。

作業系統：ubuntu 12.04 LTS（32 bit）

關於如何解決此問題的任何建議？

謝謝大家！

Answer 1

奇怪：運行rails s時會出現安裝錯誤？ 您可以嘗試通過在已安裝的捆綁包的上下文中運行命令

bundle exec rails s

但不確定在這種情況下是否有幫助。

Answer 2

以我的經驗，這是在上次安裝捆綁軟件時發生異常（缺少系統軟件）之后發生的，但未產生錯誤。

因此，您修復了系統軟件，安裝了出現問題的ok，然后在此后再次運行“捆綁安裝”時就會發生這種情況。 您可以整天更改權限，並且它將繼續創建它無法寫入的新文件名。

首先嘗試-打開一個新的Shell，將cd轉到相同的目錄，然后重試。 這為我解決了。