I've been living with a small issue with Visual Studio 2017 and VisualMicro for while that I thought might be easily solved by someone here.

When I use some Arduino constants, for example "UINT8_MAX" in my programs, Intellisense put red squiggles underneath them and when I hover over the text I get the message "Identifier "UINT8_MAX" is undefined". Yet when I right-click on the identifier to "peek definition" I get a window with the definition in "stdint.h"

Programs compile, load and run without any issues, the error is restricted to the Visual Studio ide display.

Can anyone suggest what can I do to get rid of this problem or what might be causing it?

I've tried it with "Arduino/Genuino micro", "Arduino/Genuino Uno" and with "ATmega168". Unfortunately all show the same problem.

I just set the IDE to "Arduino/Genuino Uno" and created the following sketch:

void setup()
{
  uint8_t  deviceNumber = UINT8_MAX; ///< Device Number to use in example, init used for detection loop
}
void loop()
{
} 

And the "UINT8_MAX" is squiggly-underlined as documented in the initial post yet the sketch compiles without a problem.