Build target 'AudioPlayer'
linking...
..OBJAudioPlayer.axf: Error: L6200E: Symbol PendSV_Handler multiply defined (by os_cpu_a.o and stm32f4xx_it.o).
Not enough information to list image symbols.
Not enough information to list the image map.
Finished: 2 information, 0 warning and 1 error messages.
"..OBJAudioPlayer.axf" - 1 Error(s), 0 Warning(s).
Target not created