CCS compilation errors for matlab. How to resolve? error #10234-D: unresolved symbols remain error #10010: errors encountered during linking; "*.out* not built

I am trying to write a C program that takes MATLAB .mat file. I am using 'Code Composer studio v12' for the C code. I know we have to include "mat.h" header file. I have done that. But It is giving some errors.

I have paths to the libraries

matlabroot\extern\include
matlabroo\extern\include
matlabroo\extern\lib\win64\microsoft
matlabroo\extern\lib\win64\mingw64

path in the 'File search path' of 'project properties'.

and included librearies

libmx.lib
libmat.lib
libmex.lib

in the 'File search path' of 'project properties'.

I have got some errors, I resolved some errors, but some I could not. Please help me compile this code.

Here is the code

#include <stdio.h>
#include <math.h>
#include "mat.h"
int M,N,i,j,k,l,p,q;
float y[20][20],a[20][20][20],x2[20],x3[20][20][20];
int main()
{
    MATFile *pmat;
    const char *file = "D:/Palguna/ISAR_dataset/rd_small.mat";

    printf(" enter the length of the horizontal dimension\n");
    scanf("%d",&M);
    printf(" enter the length of the vertical dimesnion\n");
    scanf("%d",&N);

   pmat = matOpen(file,"r");

    float x[3][3]={
        {1.0,0.2,-1.0},
        {0.0,2.2,1.0},
        {3.0,1.0,0.0}};

    return 0;

}

It is generating errors like

"C:\Program Files\MATLAB\R2021a\extern\include\matrix.h", line 238: error #20: identifier "int64_T" is undefined
"C:\Program Files\MATLAB\R2021a\extern\include\matrix.h", line 239: error #20: identifier "uint64_T" is undefined

I resolved this by typing

typedef long long mxInt64;
typedef unsigned long long mxUint64;

in lines 238,239 respectively in "matrix.h" file of in the path "matlabroot\extern\include"

Those two errors were corrected.

But now it is giving errors like below

Please help me resolve these errors.