Can't convert Symbol to string

I came had this error and found it was being caused by trying to add a
symbol to a string.

ruby-1.9.2-p180 > a string"+:a_symbol #=> TypeError: can't convert
Symbol into String

Hi

ruby-1.9.2-p180 > a string"+:a_symbol #=> TypeError: can’t convert

Symbol into String

You cannot concat string to symbol directly.

convert symbol to string and then concat it.

“string”+:sym.to_s

to_s is used to convert to string