ruby: No such file or directory -- ex2.rb (LoadError)
irb(main):074:0> end8
NameError: undefined local variable or method `end8' for main:Object
from (irb):74
from :0
irb(main):005:0> pots formatter % ["one", "two", "three" ,"four"]
NoMethodError: undefined method `pots' for main:Object
from (irb):5
from :0
warning: already initialized constant A
ArgumentError: wrong number of arguments (1 for 0)
irb(main):047:0> self.puts("adsf", "adsfasdfj", "asdfjkasdf")
NoMethodError: private method `puts' called for main:Object
from (irb):47
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