undefined symbol: __offload_set_version

Hi,

I am trying to run a simple offload code and I got this error:

undefined symbol: __offload_set_version

Could you help to identify this error?

1. source code:
2. ========
3. #include "offload.h"
4. #include <stdio.h>
5. #include <iostream>
6. void main()
7. {
8.     _Offload_status x;
9.     OFFLOAD_STATUS_INIT(x);
10. #pragma offload target(mic) status(x) mandatory
11.     {
12.         if (_Offload_get_device_number() < 0) {
13.             printf("mandatory offload ran on CPU\n");
14.         } else {
15.             printf("mandatory offload ran on MIC\n");
16.         }
17.     }
18.     if (x.result == OFFLOAD_SUCCESS) {
19.         printf("mandatory offload was successful\n");
20.     } else {
21.         printf("mandatory offload failed\n");
22.     }
23. }