View Compilation Error

0_0_7498426_22185.cpp:1:19: Mat.h: No such file or directory
0_0_7498426_22185.cpp: In function `int main()':
0_0_7498426_22185.cpp:8: error: `Mat' undeclared (first use this function)
0_0_7498426_22185.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7498426_22185.cpp:8: error: expected `;' before "A"
0_0_7498426_22185.cpp:9: error: `mod' undeclared (first use this function)
0_0_7498426_22185.cpp:10: error: `A' undeclared (first use this function)