I got that error when I tried to setup new Rails 5.0.0 application.
When I running 'bundle' command, I'm getting this one:
Could not find jsonapi-parser-0.1.1.beta2 in any of the sources
In my Gemfile.lock only 'active_model_serializers' depends from jsonapi witch depend from 'jsonapi-parser'.
How can I fix it?
I think:
$ bundle update jsonapi
will solve your issue though.
Works for me.