installation error (cannot install libv8-node (16.10.0.0))

System

• OS: Windows 10 64-bit
• Ruby version: 3.1.2p20 (2022-04-12 revision 4491bb740a)
• Bundler version: 2.3.15
• rubygems version: 3.3.15

Problem I’ve had problems installing a package which has mini_racer as a dependency (see here), and so trying to isolate the issue I tried to install mini_racer by itself, but I cannot. Specifically, I get An error occurred while installing libv8-node (16.10.0.0), and Bundler cannot continue.

I’ve tried to follow the installation troubleshooting instructions but it doesn’t seem to help.

Reproducible example

Just to be sure there aren’t old versions messing things up:

$ gem uninstall --all mini_racer libv8-node
Gem 'mini_racer' is not installed
Gem 'libv8-node' is not installed

I create a Gemfile with gem 'mini_racer'

Then as per the FAQ: $ bundle lock --add-platform x64-mingw-ucrt

Then time to install:

$ bundle
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Using bundler 2.3.15
Fetching libv8-node 16.10.0.0
Installing libv8-node 16.10.0.0 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
C:/myprograms/Ruby31-x64/bin/ruby.exe -I
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0 -r
./siteconf20220602-12104-lkb65l.rb extconf.rb
creating Makefile
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/builder.rb:12:in
`build_libv8!': failed to download node 16.10.0 (Libv8::Node::BuilderError)
from
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/location.rb:30:in
`install!'
        from extconf.rb:9:in `<main>'
==== in
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
==== running
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/libexec/download-node

extconf failed, exit code 1

Gem files will remain installed in
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0 for
inspection.
Results logged to
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/extensions/x64-mingw-ucrt/3.1.0/libv8-node-16.10.0.0/gem_make.out

C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/builder.rb:95:in
`run'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/ext_conf_builder.rb:47:in
`block in build'
  C:/myprograms/Ruby31-x64/lib/ruby/3.1.0/tempfile.rb:317:in `open'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/ext_conf_builder.rb:26:in
`build'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/builder.rb:164:in
`build_extension'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/builder.rb:198:in
`block in build_extensions'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/builder.rb:195:in
`each'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/ext/builder.rb:195:in
`build_extensions'
C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0/rubygems/installer.rb:851:in
`build_extensions'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/rubygems_gem_installer.rb:71:in
`build_extensions'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/rubygems_gem_installer.rb:28:in
`install'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/source/rubygems.rb:204:in
`install'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/installer/gem_installer.rb:54:in
`install'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/installer/gem_installer.rb:16:in
`install_from_spec'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/installer/parallel_installer.rb:186:in
`do_install'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/installer/parallel_installer.rb:177:in
`block in worker_pool'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/worker.rb:62:in
`apply_func'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/worker.rb:57:in
`block in process_queue'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/worker.rb:54:in
`loop'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/worker.rb:54:in
`process_queue'
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/bundler-2.3.15/lib/bundler/worker.rb:91:in
`block (2 levels) in create_threads'

An error occurred while installing libv8-node (16.10.0.0), and Bundler cannot
continue.

In Gemfile:
  mini_racer was resolved to 0.6.2, which depends on
    libv8-node

I then try to install it myself, but still doesn’t work:

$ gem install mini_racer --platform x64-mingw-ucrt
Temporarily enhancing PATH for MSYS/MINGW...
Building native extensions. This could take a while...
ERROR:  Error installing mini_racer:
        ERROR: Failed to build gem native extension.

    current directory: C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
C:/myprograms/Ruby31-x64/bin/ruby.exe -I C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0 -r ./siteconf20220602-8952-p8m3se.rb extconf.rb
creating Makefile
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/builder.rb:12:in `build_libv8!': failed to download node 16.10.0 (Libv8::Node::BuilderError)
        from C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/location.rb:30:in `install!'
        from extconf.rb:9:in `<main>'
==== in C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
==== running C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/libexec/download-node

extconf failed, exit code 1

Gem files will remain installed in C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0 for inspection.
Results logged to C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/extensions/x64-mingw-ucrt/3.1.0/libv8-node-16.10.0.0/gem_make.out

$ gem install libv8-node --platform x64-mingw-ucrt
Temporarily enhancing PATH for MSYS/MINGW...
Building native extensions. This could take a while...
ERROR:  Error installing libv8-node:
        ERROR: Failed to build gem native extension.

    current directory: C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
C:/myprograms/Ruby31-x64/bin/ruby.exe -I C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0 -r ./siteconf20220602-17288-tlm9zt.rb extconf.rb
creating Makefile
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/builder.rb:12:in `build_libv8!': failed to download node 16.10.0 (Libv8::Node::BuilderError)
        from C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/location.rb:30:in `install!'
        from extconf.rb:9:in `<main>'
==== in C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
==== running C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/libexec/download-node

extconf failed, exit code 1

Gem files will remain installed in C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0 for inspection.
Results logged to C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/extensions/x64-mingw-ucrt/3.1.0/libv8-node-16.10.0.0/gem_make.out

And to just be comprehensive, I still have problems if I don’t specify the platform whether I do it via a Gemfile or do it myself, e.g. :

$ gem install mini_racer
Temporarily enhancing PATH for MSYS/MINGW...
Building native extensions. This could take a while...
ERROR:  Error installing mini_racer:
        ERROR: Failed to build gem native extension.

    current directory: C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
C:/myprograms/Ruby31-x64/bin/ruby.exe -I C:/myprograms/Ruby31-x64/lib/ruby/site_ruby/3.1.0 -r ./siteconf20220602-12156-gee44r.rb extconf.rb
creating Makefile
C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/builder.rb:12:in `build_libv8!': failed to download node 16.10.0 (Libv8::Node::BuilderError)
        from C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node/location.rb:30:in `install!'
        from extconf.rb:9:in `<main>'
==== in C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/ext/libv8-node
==== running C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0/libexec/download-node

extconf failed, exit code 1

Gem files will remain installed in C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/gems/libv8-node-16.10.0.0 for inspection.
Results logged to C:/myprograms/Ruby31-x64/lib/ruby/gems/3.1.0/extensions/x64-mingw-ucrt/3.1.0/libv8-node-16.10.0.0/gem_make.out

Any advice? I’m completely new to Ruby, apologies if I’m missing something obvious.

[tisba]

@Adsidera Can you open a separate issue please? This one is most likely because of Windows. Please check the troubleshooting section in the README first (esp. b/c it looks like your platform is missing) and include your Gemfile and Gemfile.lock.

[lloeki]

IIUC from the logs, this is a “pure windows” Ruby built on MinGW? (no Cygwin, no WSL2)

I don’t think this is supposed to be supported yet, although we have a task open for it:

https://github.com/rubyjs/libv8-node/issues/9