无法安装json gem

Question

I've had this problem several times and was able to get this fixed by running bundle update , but now I cannot get it working at all. I haven't touched my rails app in about 3 weeks and now I come back and have this issue.

Here's the error that I'm getting:

[root:acd9066b01f9:~/inspinia]# bundle update json                                                                                                                                                                                                         7:10PM/04.22
Fetching gem metadata from https://rubygems.org/.............
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies...
Using rake 10.4.2
Using i18n 0.7.0
Fetching json 1.8.6 (was 1.8.3)
Installing json 1.8.6 (was 1.8.3) with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/usr/local/rvm/gems/ruby-2.5.1/gems/json-1.8.6/ext/json/ext/generator
/usr/local/rvm/rubies/ruby-2.5.1/bin/ruby -r ./siteconf20190422-4608-t99jp9.rb
extconf.rb
Cannot allocate memory - /usr/local/rvm/rubies/ruby-2.5.1/bin/ruby -r
./siteconf20190422-4608-t99jp9.rb extconf.rb 2>&1

Gem files will remain installed in
/usr/local/rvm/gems/ruby-2.5.1/gems/json-1.8.6 for inspection.
Results logged to
/usr/local/rvm/gems/ruby-2.5.1/extensions/x86_64-linux/2.5.0/json-1.8.6/gem_make.out

An error occurred while installing json (1.8.6), and Bundler cannot
continue.
Make sure that `gem install json -v '1.8.6' --source 'https://rubygems.org/'`
succeeds before bundling.

In Gemfile:
  rails was resolved to 4.2.3, which depends on
    actionmailer was resolved to 4.2.3, which depends on
      actionpack was resolved to 4.2.3, which depends on
        actionview was resolved to 4.2.3, which depends on
          rails-dom-testing was resolved to 1.0.7, which depends on
            rails-deprecated_sanitizer was resolved to 1.0.3, which depends on
              activesupport was resolved to 4.2.3, which depends on
                json

So as shown above, I can't run bundle update . I've tried adding other versions of Json into the Gemfile, but 1.8.0, 1.8.1 both gave me the same exact error.

I have tried to install other versions of bundler as well:

[root:acd9066b01f9:~/inspinia]# gem install bundler -v '= 1.5.1'                                                                                                                                                                                           7:10PM/04.22
Successfully installed bundler-1.5.1           
Parsing documentation for bundler-1.5.1                 
Done installing documentation for bundler after 0 seconds
1 gem installed    

Which doesn't help, as I run into the exact same problem.

I've also tried some other suggestions mentioned in other posts, including libgmp-dev :

[root:acd9066b01f9:~/inspinia]# apt-get install libgmp-dev                                                                                                                                                                                                 7:12PM/04.22
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libgmp-dev is already the newest version (2:6.1.2+dfsg-2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Any thoughts would be greatly appreciated. This seems like a repetitive issue that I can never get away from for whatever reason.

Answer 1

I met this problem many times ago. For ubuntu environment, try to install libgmp3-dev

sudo apt-get install libgmp3-dev

Then run bundle update json again.