Error in installing json 1.8.3 with ruby 2.4.0 on Ubuntu

Question

I am trying to run an open source web app on my local machine(Ubuntu 15.10). When I run bundle command I'm getting this

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/home/yesh/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator
/home/yesh/.rbenv/versions/2.4.0/bin/ruby -r ./siteconf20170310-4319-tlc92v.rb
extconf.rb
creating Makefile

current directory:
/home/yesh/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator
make "DESTDIR=" clean

current directory:
/home/yesh/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator
make "DESTDIR="
compiling generator.c
generator.c: In function ‘generate_json’:
generator.c:861:25: error: ‘rb_cFixnum’ undeclared (first use in this function)
     } else if (klass == rb_cFixnum) {
                         ^
generator.c:861:25: note: each undeclared identifier is reported only once for
each function it appears in
generator.c:863:25: error: ‘rb_cBignum’ undeclared (first use in this function)
     } else if (klass == rb_cBignum) {
                         ^
generator.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
Makefile:241: recipe for target 'generator.o' failed
make: *** [generator.o] Error 1

make failed, exit code 2

Gem files will remain installed in
/home/yesh/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3 for
inspection.
Results logged to
/home/yesh/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-linux/2.4.0-static/json-1.8.3/gem_make.out

An error occurred while installing json (1.8.3), and Bundler cannot
continue.
Make sure that `gem install json -v '1.8.3'` succeeds before bundling.

So I tried gem install json -v '1.8.3' but again got the same error message as above. Please help in resolving this.

Khanh Pham · Accepted Answer · 2017-03-10T09:58:53.630

7

I think you can solve your problem as:

sudo apt-get install libgmp3-dev

and if above command didn't solve your system, you can try to install this command:

sudo apt-get install libgmp-dev

You can refer at json-1.8.3 Gem::Ext::BuildError

Because your ruby version is 2.4.0.The ruby version is not compatible with json 1.8.3. You can try add this line in your Gemfile:

gem 'json', github: 'flori/json', branch: 'v1.8'

edited Mar 10 '17 at 09:58

answered Mar 10 '17 at 08:22

Khanh Pham

2,848
2
28
36

I had tried these two but did not work – Yeshwanth Venkatesha Mar 10 '17 at 09:42
@YeshwanthVenkatesha i updated my answer, please check it again. – Khanh Pham Mar 10 '17 at 09:59
2

That worked. Thank you very much! – Yeshwanth Venkatesha Mar 10 '17 at 22:14
@YeshwanthVenkatesha if my answer helped you to solve your problem, please mark it. thank you. – Khanh Pham Mar 13 '17 at 00:43
It does work great. Thanks a lot. – Perfect May 23 '18 at 19:49

score 0 · Answer 2 · answered Mar 10 '17 at 08:19

0

Seems like your Ruby version differs from Project's version of Ruby. JSON only supports Integer unification in Ruby from v. 2.0.0. and up - maybe some of the listed gems depend on json (~> 1.8). Either comment out this gem in Gemfile and run bundle install or downgrade Ruby. Read more about this issue.

answered Mar 10 '17 at 08:19

Tomasz Bubała

2,093
1
11
18

Commenting that line in Gemfile did not work. Maybe I will have to downgrade Ruby. :/ – Yeshwanth Venkatesha Mar 10 '17 at 09:43

Error in installing json 1.8.3 with ruby 2.4.0 on Ubuntu

2 Answers2