incompatible marshal file format (format version 4.8 required; 60.33 given)

[keykin]

I'm having a problem.

My current problem is:

# gem install bundler
ERROR:  While executing gem ... (TypeError)
    incompatible marshal file format (can't be read)
    format version 4.8 required; 60.33 given

This issue is related to:

• Network problems
• Installing a library
• Publishing a library
• The command line gem
• Other

Here are my current envrionment details:

ruby --version

ruby 1.9.3p551 (2014-11-13 revision 48407) [x86_64-linux]

uname -a

Linux localhost.localdomain 3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

$ gem env version
2.6.3

any help?

thx.

[bronzdoc]

@keykin Could not reproduce the error with the details you provide, I'm going to close this, please re-open if this is still an issue for you.

[hidehiro98]

I have the same error,,,
Ruby version: 2.4.1

gem env version
2.6.11

[EliseS1]

Same ! Ruby -v 2.5.3p105

Same ! Ruby -v 2.5.3p105

[deivid-rodriguez]

What's going on here? Can someone run the command with the --backtrace, --debug and --verbose flags to give us more information?

[WvanLelyveld]

$ gem install bundler --backtrace --debug --verbose
NOTE:  Debugging mode prints all exceptions even when rescued
Exception `LoadError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/2.6.0/resolv.rb:170 - LoadError
HEAD http://gems.rubyforge.org/api/v1/dependencies
301 Moved Permanently
HEAD https://rubygems.org
200 OK
HEAD http://gems.github.com/api/v1/dependencies
301 Moved Permanently
HEAD http://gems.github.io/api/v1/dependencies
404 Not Found
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/remote_fetcher.rb:244 - bad response Not Found 404 (http://gems.github.io/api/v1/dependencies)
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/remote_fetcher.rb:274 - bad response Not Found 404 (http://gems.github.io/api/v1/dependencies)
Exception `Errno::EEXIST' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/2.6.0/fileutils.rb:239 - File exists @ dir_s_mkdir - /Users/WvL/.gem/specs/gems.github.com%80
GET http://gems.github.com/prerelease_specs.4.8.gz
301 Moved Permanently
GET http://gems.github.io/prerelease_specs.4.8.gz
404 Not Found
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/remote_fetcher.rb:244 - bad response Not Found 404 (http://gems.github.io/prerelease_specs.4.8.gz)
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/remote_fetcher.rb:274 - bad response Not Found 404 (http://gems.github.io/prerelease_specs.4.8.gz)
Exception `Errno::EEXIST' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/2.6.0/fileutils.rb:239 - File exists @ dir_s_mkdir - /Users/WvL/.gem/specs/gems.github.com%80
GET http://gems.github.com/specs.4.8.gz
301 Moved Permanently
GET http://gems.github.io/specs.4.8.gz
404 Not Found
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/remote_fetcher.rb:244 - bad response Not Found 404 (http://gems.github.io/specs.4.8.gz)
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/remote_fetcher.rb:274 - bad response Not Found 404 (http://gems.github.io/specs.4.8.gz)
Exception `Gem::RemoteFetcher::FetchError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/spec_fetcher.rb:269 - bad response Not Found 404 (http://gems.github.io/specs.4.8.gz)
GET https://rubygems.org?gems=bundler
200 OK
Exception `TypeError' at /Users/WvL/.rvm/rubies/ruby-2.6.0/lib/ruby/site_ruby/2.6.0/rubygems/resolver/api_set.rb:118 - incompatible marshal file format (can't be read)
	format version 4.8 required; 60.33 given
ERROR:  While executing gem ... (TypeError)
    incompatible marshal file format (can't be read)
	format version 4.8 required; 60.33 given

[halilim]

Having a similar issue with rbenv

$ gem install bundler --backtrace --debug --verbose
NOTE:  Debugging mode prints all exceptions even when rescued
Exception `LoadError' at /Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/resolv.rb:170 - LoadError
HEAD http://gems.rubyforge.org/api/v1/dependencies
301 Moved Permanently
HEAD https://rubygems.org
200 OK
GET https://rubygems.org?gems=bundler
200 OK
Exception `TypeError' at /Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/api_set.rb:118 - incompatible marshal file format (can't be read)
	format version 4.8 required; 60.33 given
ERROR:  While executing gem ... (TypeError)
    incompatible marshal file format (can't be read)
	format version 4.8 required; 60.33 given
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/api_set.rb:118:in `load'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/api_set.rb:118:in `versions'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/api_set.rb:55:in `find_all'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/composed_set.rb:55:in `block in find_all'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/composed_set.rb:54:in `map'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/composed_set.rb:54:in `find_all'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/best_set.rb:31:in `find_all'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/installer_set.rb:155:in `find_all'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/resolver/installer_set.rb:56:in `add_always_install'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/dependency_installer.rb:478:in `resolve_dependencies'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/commands/install_command.rb:201:in `install_gem'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/commands/install_command.rb:264:in `block in install_gems'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/commands/install_command.rb:258:in `each'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/commands/install_command.rb:258:in `install_gems'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/commands/install_command.rb:165:in `execute'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/command.rb:321:in `invoke_with_build_args'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/command_manager.rb:176:in `process_args'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/command_manager.rb:146:in `run'
	/Users/halil/.rbenv/versions/2.6.1/lib/ruby/2.6.0/rubygems/gem_runner.rb:59:in `run'
	/Users/halil/.rbenv/versions/2.6.1/bin/gem:21:in `<main>'

[WvanLelyveld]

It seems bundler can't find sources for your gem.
It's probably because the remote sources are outdated. You can check your remote sources with gem env. I think the last of these old sources has now become unavailable:

  - REMOTE SOURCES:
     - http://gems.rubyforge.org/
     - http://gems.github.com

Since these are outdated, you should add https://rubygems.org as a source now to the gem env config. You can update the config with the following commands:

gem sources -r http://gems.rubyforge.org/
gem sources -r http://gems.github.com
gem sources -a https://rubygems.org/

When updated, gem sources -lshould return:

*** CURRENT SOURCES ***

https://rubygems.org/

Credits go to https://qiita.com/hidehiro98/items/bb6ed9bc109021034af0

[halilim]

Indeed, updating remote sources fixed it for me.

Is there any official announcement for this? And I have recently installed Ruby 2.6.1, could it be related
to it? Sorry if I missed something.

[WvanLelyveld]

Not that I know of.