CC libavdevice/alldevices.o CC libavdevice/avdevice.o alldevices.c avdevice.c C:\Dev\ffmpeg\git\libavdevice\avdevice.c : fatal error C1083: Cannot open compiler generated file: 'C:\c\Dev\ffmpeg\fate\x86_64-msvc2015\build\libavdevice\avdevice.o': No such file or directory C:\Dev\ffmpeg\git\libavdevice\alldevices.c : fatal error C1083: Cannot open compiler generated file: 'C:\c\Dev\ffmpeg\fate\x86_64-msvc2015\build\libavdevice\alldevices.o': No such file or directory /c/Dev/ffmpeg/fate/x86_64-msvc2015/src/common.mak:60: recipe for target 'libavdevice/alldevices.o' failed make: *** [libavdevice/alldevices.o] Error 1 make: *** Waiting for unfinished jobs.... /c/Dev/ffmpeg/fate/x86_64-msvc2015/src/common.mak:60: recipe for target 'libavdevice/avdevice.o' failed make: *** [libavdevice/avdevice.o] Error 1 CC libavdevice/dshow.o dshow.c C:\Program Files (x86)\Windows Kits\8.1\include\um\dvdmedia.h(320): warning C4201: nonstandard extension used: nameless struct/union C:\Dev\ffmpeg\git\libavdevice\dshow.c : fatal error C1083: Cannot open compiler generated file: 'C:\c\Dev\ffmpeg\fate\x86_64-msvc2015\build\libavdevice\dshow.o': No such file or directory /c/Dev/ffmpeg/fate/x86_64-msvc2015/src/common.mak:60: recipe for target 'libavdevice/dshow.o' failed make: *** [libavdevice/dshow.o] Error 1