CODEWITHSUNDEEP
intellij-ideaerlang
Marko Taht
Marko Taht

Reputation: 1522

Erlang cannot run in intellij

Trying to run simple erlang file in intellij.

-module('Tutorial').

%% API
-export([helloWorld/0]).

helloWorld() -> io:write("Hello World").

But when I try to run I always get 

init terminating in do_boot ()

{"init terminating in do_boot",{{unbound_var,'Tutorial'},[{erl_eval,exprs,2,[]}]}}
Crash dump is being written to: erl_crash.dump...done

Im using erlang 8.3 and a intellij plugin for erlang.

Upvotes: 2

Views: 982

Answers (2)

Derek Brown
Derek Brown

Reputation: 511

Sort of- atoms (which module names are) can be capitalized if surrounded by single quotes, as seen here. I'm not sure how you're running the code, but the following illustrates (the code is in Foo.erl).

-module('Foo').

-export([bar/0]).

bar() ->
  io:format("foobar~n").

And then

1> c("Foo.erl").
{ok,'Foo'}
2> 'Foo':bar().
foobar
ok
3>

Upvotes: 2

Mathias Vonende
Mathias Vonende

Reputation: 1380

Use: 

-module('tutorial').

in a file called: "tutorial.erl". The expression: "Tutorial" is interpreted as a variable (because the first letter is capitalized). When the runtime encounters this variable, it tries to evaulate it, but since it is not defined, you get the error.

Upvotes: 4

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