Hello everyone, I am implementing a stack with Genserver, but I keep getting an error saying there is no process alive. Please go through the code below. defmodule Stack.Server do use GenServer def start(_elements) do IO.puts "Hello" GenServer.start_link(__MODULE__, [4,5,"cool"]) …

Welcome to the forum! GenServer.call(:pops, pid) Have a look at GenServer.call/3 While you are there have a look at the GenServer stack example.

Double check your function parameter order on genserver.call your function matching order when you handle :pop your atom literals Later, you’re gonna want to double check the spec on handle_cast.

Thanks for replying. Does matching order matters when we call the function?

Thanks a lot, I have figured out some of the problems and divided the program into modules now.

[image] kdlogan19: Does matching order matters when we call the function? Check the order of the arguments in your handle_call/3 callback function.

Yes order is important. [image] kdlogan19: def handle_call( _from,:pop,[h|t]) do so this def handle_call(:pop, _from, [h|t]) do

I know some languages are more permissive, but elixir is sane, you can’t do def subtract(a, b) with an unexpected matching order.

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Error: Process is not alive while implementing a Stack through genserver

Questions & Help Questions

kdlogan19 September 17, 2019, 6:52pm 8

yup, correct it. Thanks