Pod install doesn't work

[andheiberg]

dyld: lazy symbol binding failed: Symbol not found: _rb_str_new_static
  Referenced from: /Users/andreasheiberg/.rvm/gems/ruby-2.2.1/gems/json-1.8.3/lib/json/ext/parser.bundle
  Expected in: flat namespace

dyld: Symbol not found: _rb_str_new_static
  Referenced from: /Users/andreasheiberg/.rvm/gems/ruby-2.2.1/gems/json-1.8.3/lib/json/ext/parser.bundle
  Expected in: flat namespace

[Name-less]

Doing rvm reload. Then gem uninstall sqlite3 and gem install sqlite3 worked for me ...
(see http://stackoverflow.com/questions/16400588/rails-s-dyld-lazy-symbol-binding-failed-symbol-not-found-rb-intern2)