How to fix ERROR_INVALID_ADDRESS (error 487) returned by SymFromAddr

Question

I'm tryng to get function name by address.

I'm using VS Community 2019 and my first step is to copy microsoft examples that you can find at:
https://learn.microsoft.com/en-us/windows/desktop/debug/initializing-the-symbol-handler
https://learn.microsoft.com/en-us/windows/desktop/debug/retrieving-symbol-information-by-address

#include <stdio.h>
#include <windows.h>
#include <dbghelp.h>

#pragma comment(lib, "dbghelp")

int main() {

     DWORD64  SOME_ADDRESS = (DWORD64) (main);

    // https://learn.microsoft.com/en-us/windows/desktop/debug/initializing-the-symbol-handler

    DWORD  error;
    HANDLE hProcess;

    SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);

    hProcess = GetCurrentProcess();

    if (!SymInitialize(hProcess, NULL, TRUE))
    {
        // SymInitialize failed
        error = GetLastError();
        printf("SymInitialize returned error : %d\n", error);
        return FALSE;
    }

    // https://learn.microsoft.com/en-us/windows/desktop/debug/retrieving-symbol-information-by-address

    DWORD64  dwDisplacement = 0;
    DWORD64  dwAddress = SOME_ADDRESS;

    char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR)];
    PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;

    pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
    pSymbol->MaxNameLen = MAX_SYM_NAME;

    if (SymFromAddr(hProcess, dwAddress, &dwDisplacement, pSymbol))
    {
        // SymFromAddr returned success
    }
    else
    {
        // SymFromAddr failed
        DWORD error = GetLastError();
        printf("SymFromAddr returned error : %d\n", error);
    }

}

But this code print always "SymFromAddr returned error : 487"...
I think I'm doing something wrong.
Can you help?

Thanks,
Alberto