Error "variable or field declared void" comes and goes without reason

Projects Programming
1

Hi all,

I see a problem similar to the one reported here: Compile error (unless adding extra lines) when multiple files in a single sketch

When I create these three files (also attached as ZIP) in a directory called "Test"

Test.ino:

#include <ESP8266WiFi.h>

void setup()
{
}

void loop()
{
}

File_1.ino:

void function_declared_void(IPAddress parameter)
{
}

File_2.ino:

void a()
{
}

void b()
{
}

void c()
{
}

void make_this_function_name_shorter_to_work_around_bug()
{
}

void or_make_this_function_name_shorter_to_work_around_bug()
{
}

void f()
{
}

then "Verify" using Arduino IDE v1.8.8 fails with these messages:

File_1:1:29: error: variable or field 'function_declared_void' declared void

 void function_declared_void(IPAddress parameter)

                             ^

File_1:1:29: error: 'IPAddress' was not declared in this scope

exit status 1
variable or field 'function_declared_void' declared void

but when I change the code in one of these ways, it compiles without problem:

  • In File_2.ino change "void make_this_function_name_shorter_to_work_around_bug()" to "void d()"
  • In File_2.ino change "void or_make_this_function_name_shorter_to_work_around_bug()" to "void e()"
  • In File_1.ino add "#include <ESP8266WiFi.h>" to the top as first line
  • In File_1.ino change "void function_declared_void(IPAddress parameter)" to "void function_declared_void(int parameter)"
  • In File_1.ino add an empty line to the top as first line

the problem also disappears when I use Arduino IDE version 1.9.0-beta, but that has multiple other problems (can't program or write data to ESP SPIFFS while serial monitor is running & sometimes all menu items are shown twice).

Do you recognize this problem? If so, (when) will it be solved?

Thank you,
woutput

Test.zip (753 Bytes)

2

woutput:
Do you recognize this problem?

Yes.

If so, (when) will it be solved?

A few days ago:

ARDUINO 1.8.9 2019.03.15

3

Thank you.
Version 1.8.9 solves this problem.