nokogiri 1.7.0.1をUbuntu 16.04.3にインストールするにはどうすればよいですか？

Question

bundleと一緒にインストールしようとしましたが、エラーが発生しました。 I doにはzlibがインストールされています。

Fetching nokogiri 1.7.0.1 


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    Password: 
Installing nokogiri 1.7.0.1 with native extensions 
Gem::Ext::BuildError: ERROR: Failed to build gem native extension. 

current directory: 
/tmp/bundler20171101-9510-jcrqsknokogiri-1.7.0.1/gems/nokogiri-1.7.0.1/ext/nokogiri 
/usr/bin/ruby2.3 -r ./siteconf20171101-9510-tlx1ob.rb extconf.rb 
checking if the C compiler accepts ... yes 
Building nokogiri using packaged libraries. 
Using mini_portile version 2.1.0 
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: 

/tmp/bundler20171101-9510-jcrqsknokogiri-1.7.0.1/extensions/x86_64-linux/2.3.0/nokogiri-1.7.0.1/mkmf.log 

extconf failed, exit code 1 

Gem files will remain installed in 
/tmp/bundler20171101-9510-jcrqsknokogiri-1.7.0.1/gems/nokogiri-1.7.0.1 for 
inspection. 
Results logged to 
/tmp/bundler20171101-9510-jcrqsknokogiri-1.7.0.1/extensions/x86_64-linux/2.3.0/nokogiri-1.7.0.1/gem_make.out 

An error occurred while installing nokogiri (1.7.0.1), and Bundler 
cannot continue. 
Make sure that `gem install nokogiri -v '1.7.0.1'` succeeds before bundling. 

In Gemfile: 
    nested_form_fields was resolved to 0.8.2, which depends on 
    rails was resolved to 5.0.2, which depends on 
     actioncable was resolved to 5.0.2, which depends on 
     actionpack was resolved to 5.0.2, which depends on 
      actionview was resolved to 5.0.2, which depends on 
      rails-dom-testing was resolved to 2.0.2, which depends on 
       nokogiri 
chloe@latitude-d430:~/projects/fortuneempire$ apt list zlib* 
Listing... Done 
zlib-gst/xenial 3.2.5-1build2 amd64 
zlib1g/xenial-updates,now 1:1.2.8.dfsg-2ubuntu4.1 amd64 [installed] 
zlib1g-dbg/xenial-updates 1:1.2.8.dfsg-2ubuntu4.1 amd64 
zlib1g-dev/xenial-updates 1:1.2.8.dfsg-2ubuntu4.1 amd64 
zlibc/xenial,now 0.9k-4.3 amd64 [installed] 
chloe@latitude-d430:~/projects/$ 

Answer 1

あなたのエラーがzlibから来ているように見えます：

のzlibが欠落しています。建物のlibxml2のために必要なことは、問題を解決する可能性がありますパッケージをインストールするように思える

this議論から

は：その後、

Ubuntuのため

sudo apt-get install zlib1g-dev 

だけnokogiriをインストールしてみてください：

gem install nokogiri -v '1.7.0.1'