На моем компьютере с Ubuntu установлена программа ruby v.2.3.1p112. Я недавно установил rails (v.5.2.1), но в последнее время rails испытывает некоторые проблемы, связанные с неустановкой гемов, особенно с двумя гемами и одной программой: nokogiri, sqlite3 и zlib1g-dev. Я не могу запустить сервер rails и разработать свое приложение без этих вещей, по-видимому, поэтому я был бы признателен за любую помощь в установке этих вещей и устранении основной проблемы, стоящей за проблемами.
Вот журналы:
* * 1004 nokogiri
Он начинается с того, что у меня нет разрешений, вот так:
foo@foo:~$ gem install nokogiri
ERROR: While executing gem ... (Errno::EACCES)
Permission denied @ rb_sysopen - /var/lib/gems/2.3.0/gems/nokogiri-1.8.5/.autotest
Когда я использую "sudo" .....
foo@foo:~$ sudo gem install nokogiri
[sudo] password for foo:
Building native extensions. This could take a while...
ERROR: Error installing nokogiri:
ERROR: Failed to build gem native extension.
current directory: /var/lib/gems/2.3.0/gems/nokogiri-1.8.5/ext/nokogiri
/usr/bin/ruby2.3 -r ./siteconf20181102-6590-1t6ljhe.rb extconf.rb
checking if the C compiler accepts ... yes
Building nokogiri using packaged libraries.
Using mini_portile version 2.3.0
checking for gzdopen() in -lz... no
zlib is missing; necessary for building libxml2
*** 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=/usr/bin/$(RUBY_BASE_NAME)2.3
--help
--clean
--use-system-libraries
--enable-static
--disable-static
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
--enable-cross-build
--disable-cross-build
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/nokogiri-1.8.5/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.3.0/gems/nokogiri-1.8.5 for inspection.
Results logged to /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/nokogiri-1.8.5/gem_make.out
Проблемы с zlib1g-dev:
foo@foo:~$ sudo apt-get install zlib1g-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
zlib1g-dev : Depends: zlib1g (= 1:1.2.8.dfsg-2ubuntu4) but 1:1.2.8.dfsg-2ubuntu4.1 is to be installed
E: Unable to correct problems, you have held broken packages.