class

Unit::ConversionError

Inherits Unit::UnitError < Exception < Reference < Object

Exception raised when a conversion between units fails. This typically happens when attempting to convert between incompatible measurement types (e.g., weight to length).

Example:

begin
  weight = Weight.new(10, :kg)
  length = Length.new(5, :m)
  # This would raise ConversionError:
  # weight + length
rescue ex : Unit::ConversionError
  puts ex.message # => "Cannot convert from Weight to Length: Incompatible measurement types"
end