Error Include Mutex IAR Embedded Workbench ARM

I'm trying to implement the EtHash algorithm in the AM3357 microcontroller, but when I try to include the mutex library it shows the following error: "Fatal Error [Pe035]: #error directive: "IAR Systems does not support mutex""

 I've already tried to enable parallel build,  put the full path of mutex library and multicore debugging, nothing worked

Is there a way to fix this error?