I need your help with running my code.
Here it is:

`
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
extern "C"
{
    void asmMain(void);
    int asmScanf(char* dest, int maxLen);
}
int asmScanf(char* dest, int maxLen)
{
    char* result = fgets(dest, maxLen, stdin);
    if (result != NULL)
    {
        int len = strlen(result);
        if (len > 0)
        {
            dest[len - 1] = 0;
        }
        return len;
    }
    return NULL;
}
void clrscr(void)
{
    system("cls");
}
int main(void)
{
    clrscr();
    printf("Start asemblerskog programa: %sn");
    asmMain();
    printf("Kraj asemblerskog programa.n");
    return 0;
}
`

`
.const
option casemap:none
NULL            equ     0
noviRed         equ     10
maxDuzina       equ     256
.data
decBroj         db "Decimalni broj: ", 0
unosBroj        db "Uneseni broj u decimalnom obliku: %s", noviRed, 0
hexBroj         db noviRed, "Uneseni broj u heksadecimalnom obliku: %X", noviRed, 0
unos            db maxDuzina dup(?)
broj            dd 0
.code
externdef printf:proc
externdef asmScanf:proc
externdef atoi:proc
externdef exit:proc
public asmMain
asmMain proc
    push    rbp
    mov     rbp, rsp
    sub     rsp, 8    

    lea     rcx, decBroj
    xor     rdx, rdx   
    call    printf

    lea     rcx, unos     
    lea     rdx, [maxDuzina]  
    call    asmScanf

    lea     rcx, unos     
    mov     rdx, r8        
    call    printf

    lea     rcx, unos     
    call    atoi
    mov     dword ptr [broj], eax   

    mov     eax, dword ptr [broj]   
    lea     rcx, hexBroj
    call    printf

    add     rsp, 8     
    mov     rsp, rbp
    pop     rbp
    xor     eax, eax   
    call    exit       
asmMain endp
end
`

No matter which code I have (I even tried printing Hello World), I get these errors:
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol printf referenced in function asmMain
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol asmScanf referenced in function asmMain
ANY SUGGESTIONS AND SOLUTIONS ARE MORE THAN WELCOME!
I put .masm in Customize dependencies, I’ve added main in Linker and put MASM in .asm file (Properties, Item Type).. I need the solution for my problem!