Atmel 161025

Prog.......

//#ifndef F_CPU
#define F_CPU 16000000UL // 16 MHz clock speed
//#endif

#include <avr/io.h>
#include <util/delay.h>
#include "Arduino.h"

//Declared weak in Arduino.h to allow user redefinitions.
int atexit(void (* /*func*/ )()) { return 0; }

// Weak empty variant initialization function.
// May be redefined by variant files.
void initVariant() __attribute__((weak));
void initVariant() { }

int main(void) {
    init();
    initVariant();
    setup();
    while(1) {
        loop();
        //if(serialEventRun) serialEventRun();
    }
}

void setup() {
    //tone(3, 3100);
}

void loop() {
  digitalWrite(4,HIGH);
  delay(500);
  digitalWrite(4,LOW);
  delay(500);
}


result . . . .
Severity    Code    Description Project File    Line
Error       MakeFileGenFailureException captured - Unspecified error (Exception from HRESULT: 0x80004005 (E_FAIL))  sketch_jul26a   C:\Program Files (x86)\Atmel\Studio\7.0\Vs\Compiler.targets     line 5
Error       Error in generating MakeFile    sketch_jul26a   sketch_jul26a   line 0


If I run last successful build I get.....
Severity    Code    Description Project File    Line
Error       skipping incompatible C:\Users\Joel\Documents\Atmel Studio\7.0\TaxiBuzzer\TaxiBuzzer\ArduinoCore\Debug\libArduinoCore.a when searching for -lArduinoCore    sketch_jul26a       1
Error       cannot find -lArduinoCore   sketch_jul26a       1
Error       recipe for target 'sketch_jul26a.elf' failed    sketch_jul26a   C:\Users\Joel\Documents\Atmel Studio\7.0\TaxiBuzzer\TaxiBuzzer\sketch_jul26a\Debug\Makefile 109
Error       ld returned 1 exit status   sketch_jul26a   collect2.exe    0