Exception: ActionController::InvalidParameterKey
| Relationships & Source Files | |
| Super Chains via Extension / Inclusion / Inheritance | |
| Class Chain: 
          self,
          ArgumentError
         | |
| Instance Chain: 
          self,
          ArgumentError
         | |
| Inherits: | ArgumentError 
 | 
| Defined in: | actionpack/lib/action_controller/metal/strong_parameters.rb | 
Overview
Raised when initializing Parameters with keys that aren’t strings or symbols.
ActionController::Parameters.new(123 => 456)
# => ActionController::InvalidParameterKey: all keys must be Strings or Symbols, got: Integer