Trình cài đặt không thể cài đặt trình gỡ lỗi 1.6.8

Question

Tôi đã thử xem một số câu hỏi these, nhưng không có gì có vẻ hiệu quả. Đây là lỗi.

funk@funktop ~/rails_projects/hearingtracker $ gem install debugger -v '1.6.8' 
Fetching: columnize-0.8.9.gem (100%) 
Successfully installed columnize-0.8.9 
Fetching: debugger-ruby_core_source-1.3.5.gem (100%) 
Successfully installed debugger-ruby_core_source-1.3.5 
Fetching: debugger-linecache-1.2.0.gem (100%) 
Successfully installed debugger-linecache-1.2.0 
Fetching: debugger-1.6.8.gem (100%) 
Building native extensions. This could take a while... 
ERROR: Error installing debugger: 
    ERROR: Failed to build gem native extension. 

    /home/funk/.rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb 
*** extconf.rb failed *** 
Could not create Makefile due to some reason, probably lack of necessary 
libraries and/or headers. Check the mkmf.log file for more details. You may 
need configuration options. 

Provided configuration options: 
    --with-opt-dir 
    --without-opt-dir 
    --with-opt-include 
    --without-opt-include=${opt-dir}/include 
    --with-opt-lib 
    --without-opt-lib=${opt-dir}/lib 
    --with-make-prog 
    --without-make-prog 
    --srcdir=. 
    --curdir 
    --ruby=/home/funk/.rvm/rubies/ruby-2.1.2/bin/ruby 
/home/funk/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/fileutils.rb:1573:in `stat': No such file or directory @ rb_file_s_stat - ./212/ruby_debug.h (Errno::ENOENT) 
    from /home/funk/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/fileutils.rb:1573:in `block in fu_each_src_dest' 
    from /home/funk/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/fileutils.rb:1587:in `fu_each_src_dest0' 
    from /home/funk/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/fileutils.rb:1571:in `fu_each_src_dest' 
    from /home/funk/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/fileutils.rb:399:in `cp' 
    from extconf.rb:83:in `block in <main>' 
    from extconf.rb:82:in `each' 
    from extconf.rb:82:in `<main>' 

extconf failed, exit code 1 

Gem files will remain installed in /home/funk/.rvm/gems/ruby-2.1.2/gems/debugger-1.6.8 for inspection. 
Results logged to /home/funk/.rvm/gems/ruby-2.1.2/extensions/x86_64-linux/2.1.0/debugger-1.6.8/gem_make.out 

Answer 1

debugger gem không hoạt động với Ruby 2.1+. Thay vào đó, hãy thử byebug.