Using the latest Visual Micro on Visual Studio 2017, and Arduino IDE 1.8.3.

Using this fork of StandardCplusplus. Target platform is a Pro Micro.

In the Arduino IDE, the project compiles without any problems or warnings, and it runs normally. In Visual Micro, there are no syntax errors in the IDE, but I get a range of strange errors:

Compiling 'keypad' for 'Arduino/Genuino Micro'

keypad.ino: 3:19: error: 'MacroType' was not declared in this scope
   Macro createMacro(MacroType macro)

keypad.ino: 6:16: error: variable or field 'playMacro' declared void
   void playMacro(MacroType nextMacro)

keypad.ino: 6:16: error: 'MacroType' was not declared in this scope

keypad.ino: In function Macro createMacro(MacroType)

keypad.ino: 47:34: error: 'Macro createMacro(MacroType)' redeclared as different kind of symbol
Error compiling project sources
   Macro createMacro(MacroType macro) {
Build failed for project 'keypad'
keypad.ino:3: note  previous declaration Macro createMacro
   Macro createMacro(MacroType macro)

keypad.ino: In function void playMacro(MacroType)

keypad.ino: 244:37: error: no match for call to '(Macro) (MacroType&)
   Macro macro = createMacro(nextMacro)
 

keypad.ino: 3:19: error: 'MacroType' was not declared in this scope
Line 3 is #include <vector>?

keypad.ino: 6:16: error: variable or field 'playMacro' declared void
Actual line: #include "Macro.h"
Not sure what it wants here, as playMacro is at line 243

keypad.ino: 6:16: error: 'MacroType' was not declared in this scope
Actual line: #include "Macro.h"
Yeah, MacroType is defined below, but Macro.h doesn't have anything to do with the MacroType enum. 

keypad.ino: 47:34: error: 'Macro createMacro(MacroType)' redeclared as different kind of symbol
It wasn't declared before?

keypad.ino:3: note  previous declaration Macro createMacro
Why does it go back again?

keypad.ino: 244:37: error: no match for call to '(Macro) (MacroType&)
Not sure what's going on any more.

This problem started when I made a MacroType enum (to get rid of magic numbers/IDs), but the same source is compiled by the Arduino IDE. Closing and re-opening Visual Studio, switching between release and debug builds didn't change anything.

I attached the source code.

Hi,

It's installed, but the build results/errors are the same.

Thanks for the quick reply!

Update
Huh, interesting.
Check the generated keypad.cpp:

#include <Arduino.h>
#include <Keyboard.h>
#include <StandardCplusplus.h>
#include <vector>

#include "KeyInfo.h"
#include "Macro.h"


Macro createMacro(MacroType macro);
//
bool debounce(unsigned long t_now, unsigned long t_prev);
void playMacro(MacroType nextMacro);
//

// Variables and constants

enum class MacroType {
	HelloWorld,
	CRTL_ALT_DEL,
	Admin_CMD,
	WinMin,
	WinMax,
	WinLeft,
	WinRight,
};
// rest of code (function implementations)
 

Looks like Visual Micro makes function prototypes, but puts it on top. Types declared after that aren't picked up. Putting the MacroType declaration inside a header fixed the problem.

Sorry forgot to add,  you can also add the prototypes yourself at the correct location with exact same signature as the method.

Arduino are about to switch to a new method so Visual Micro will be updated once that matures.