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L1205 - Invalid call

Warning​

foo() ->
    123().
%%  ^^^^^ error: invalid call

Explanation​

This error occurs when you attempt to call something that is not a function. In Erlang, only atoms, variables containing function references, or fun expressions can be called.

Common causes include trying to call a number, string, or other non-callable value.

To fix this error:

  1. Ensure you're calling an actual function
  2. Check that the function name is correct
  3. Verify the syntax of your function call
%% Correct function calls
foo() ->
    bar(),           % Call function bar/0
    some_module:baz(), % Call function baz/0 in some_module
    Fun = fun() -> ok end,
    Fun().           % Call a fun