While setting up a new Rails development environment I ran into the error bson keys must be strings or symbols. After some googling I found the following method to fix it: /gems/bson-1.2.0/lib/bson/bson_c.rb:24:in `serialize': keys must be strings or symbols (TypeError) rvm gemset empty bundle install /fixed

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Brian Pearce

Software Developer, Endurance Cyclist,
Rubiest, Rustacean, and Gopher

Software Engineer

Barcelona, Spain