** (CompileError) lib/poolex.ex:324: undefined function //0

Process completed with exit code 1.

module Mix.Tasks.Format is not a behaviour (in module Styler)

got "@impl Mix.Tasks.Format" for function features/1 but this behaviour does not specify such callback. There are no known callbacks, please specify the proper @behaviour and make sure it defines callbacks

got "@impl Mix.Tasks.Format" for function format/2 but this behaviour does not specify such callback. There are no known callbacks, please specify the proper @behaviour and make sure it defines callbacks

Code.quoted_to_algebra/2 is undefined or private

variable "/" does not exist and is being expanded to "/()", please use parentheses to remove the ambiguity or change the variable name