Bug #15585: Ruby 2.6.0p0 incompatible with google-protobuf C extensions

• Status: Third Party's Issue
• Assignee: -
• Target version: -
• ruby -v: ruby 2.6.0p0 (2018-12-25 revision 66547) [x86_64-linux]
• Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN

[adrianomitre (Adriano Mitre)]

I discovered following this guide: https://grpc.io/docs/tutorials/basic/ruby.html#example-code-and-setup

The minimal setup to reproduce the error is the following:

1. install Ruby 2.6.0p0 and make it active (ex: rbenv install 2.6.0, then rbenv local 2.6.0)
2. gem install google-protobuf
3. ruby -e "require 'google/protobuf'"

My output:

Traceback (most recent call last):
	2: from -e:1:in `<main>'
	1: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- google/protobuf (LoadError)
	6: from -e:1:in `<main>'
	5: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:34:in `require'
	4: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in `rescue in require'
	3: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in `require'
	2: from ~/.rbenv/versions/2.6.0/lib/ruby/gems/2.6.0/gems/google-protobuf-3.6.1-x86_64-linux/lib/google/protobuf.rb:48:in `<top (required)>'
	1: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- google/2.6/protobuf_c (LoadError)
	7: from -e:1:in `<main>'
	6: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:34:in `require'
	5: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in `rescue in require'
	4: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in `require'
	3: from ~/.rbenv/versions/2.6.0/lib/ruby/gems/2.6.0/gems/google-protobuf-3.6.1-x86_64-linux/lib/google/protobuf.rb:47:in `<top (required)>'
	2: from ~/.rbenv/versions/2.6.0/lib/ruby/gems/2.6.0/gems/google-protobuf-3.6.1-x86_64-linux/lib/google/protobuf.rb:50:in `rescue in <top (required)>'
	1: from ~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
~/.rbenv/versions/2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- google/protobuf_c (LoadError)

[adrianomitre (Adriano Mitre)]

Please disregard: https://github.com/protocolbuffers/protobuf/issues/5161

[shyouhei (Shyouhei Urabe)]

• Status changed from Open to Third Party's Issue