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Sign upAdding psych causes CircleCI to fail with 'TypeError: superclass mismatch for class Mark' #386
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FYI: That's just how ruby and rubygems and hence bundler manages the directory path for gems. Ruby 2.5.1, 2.5.2, 2.5.3, etc will all use the same gem load path of |
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It seems like you have a top-level Line 34 in e01839a I think requiring Psych may fix the issue, but I'm not 100% sure. Given that this code has been there since 2011, I think there's something to do with other dependencies. |
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I have the same failure in case of loading Gem::Specification yaml document. The log is below: /usr/lib/ruby/psych/parser.rb:34:in `class:Parser': superclass mismatch for class Mark (TypeError) The error is risen when both default and custom gems are installed, only when gespec is being parsed. |
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As soon as another team installed psych v3.1.0 This seems to be loaded outside of bundler's context? I was able to reproduce this failure by installing 3.1.0 directly: I tried to add this explicitly to my Gemfile, but got another error then: |
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UPDATE: it seems that rubocop 0.65.0 has a dependency on psych 3.1.0 and pulled it in. WORKAROUND: As I mention in Rubocop's issue thread, this seems to be because they require psych 3.1.0 and have a ruby version requirement >= 2.2.2 gem 'rubocop', '<= 0.64.0'Psych is tightly integrated to Ruby core, so it is dangerous for Rubocop to spec it without a higher ruby version requirement. Note:
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Dear people who faced this issue. Does the following script work on your environment? What is the result of the following command? Because I faced the error in Fedora RPM Ruby here. |
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It seems that this issue comes from rubygems/rubygems#3131 . |
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Maybe here is the temporary workflow to avoid the issue, that I reported here. |
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For rubocop, it seems the they dropped psych. Maybe this issue does not happen with rubocop >= 0.68.0. rubocop-hq/rubocop@95d2110 |
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Maybe when you use rubygems applying the following one or both of the following commits, the issue does not happen. |
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You can try the following code in irb/pry console This is the kind of error reported
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We upgraded Rubocop from 0.64.0 to 0.65.0. This added a dependency on psych 3.1.0.
The tests for our app on Ruby 2.5.3 and Rails 4.2.11 started failing in CircleCI with:
(I'm not sure why the backtrace says "ruby/2.5.0" instead of 2.5.3.)
We also get some warnings like
if that's relevant.