{"record":{"id":"6000daa703b4b127","repo":"ruby/rubygems","slug":"unknown-option-format-format-supported-for","errorCode":null,"errorMessage":"Unknown option`--format=#{@format}`. Supported formats: `json`","messagePattern":"Unknown option`--format=#(.+?)`\\. Supported formats: `json`","errorType":"exception","errorClass":"Bundler::InvalidOption","httpStatus":null,"severity":"error","filePath":"lib/bundler/cli/list.rb","lineNumber":37,"sourceCode":"      specs = if @only_group.any? || @without_group.any?\n        filtered_specs_by_groups\n      else\n        begin\n          Bundler.load.specs\n        rescue GemNotFound => e\n          Bundler.ui.error e.message\n          Bundler.ui.warn \"Install missing gems with `bundle install`.\"\n          exit 1\n        end\n      end.reject {|s| s.name == \"bundler\" }.sort_by(&:name)\n\n      case @format\n      when \"json\"\n        print_json(specs: specs)\n      when nil\n        print_human(specs: specs)\n      else\n        raise InvalidOption, \"Unknown option`--format=#{@format}`. Supported formats: `json`\"\n      end\n    end\n\n    private\n\n    def print_json(specs:)\n      gems = if @options[\"name-only\"]\n        specs.map {|s| { name: s.name } }\n      else\n        specs.map do |s|\n          {\n            name: s.name,\n            version: s.version.to_s,\n            git_version: s.git_version&.strip,\n          }.tap do |h|\n            h[:path] = s.full_gem_path if @options[\"paths\"]\n          end\n        end","sourceCodeStart":19,"sourceCodeEnd":55,"githubUrl":"https://github.com/ruby/rubygems/blob/86cbb817a38ce8477b181c17467a703ded3f2be8/lib/bundler/cli/list.rb#L19-L55","documentation":"Error \"Unknown option`--format=#{@format}`. Supported formats: `json`\" thrown in ruby/rubygems.","triggerScenarios":"Thrown at lib/bundler/cli/list.rb:37 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"86cbb817a38ce8477b181c17467a703ded3f2be8","analyzedAt":"2026-08-23T06:27:48.159Z","schemaVersion":2},"datasetVersion":"2026-08-23T08:06:27.607Z"}