Trying to compile SDL2 Mixer, but files are missing

Greetings,

I am trying to compile SDL2_mixer in Visual Studio 2019 Community as a static lib, to use it and statically link it to my game engine project. Apparently, it cannot find certain files, which causes it to give out errors. I got the source code from here .

Below are the errors that I was given:

  Copying libFLAC-8.dll
  The system cannot find the file specified.
  Copying libmodplug-1.dll
  The system cannot find the file specified.
  Copying libogg-0.dll
  The system cannot find the file specified.
  Copying libopus-0.dll
  The system cannot find the file specified.
  Copying libopusfile-0.dll
  The system cannot find the file specified.
  Copying libvorbis-0.dll
  The system cannot find the file specified.
  Copying libvorbisfile-3.dll
  The system cannot find the file specified.
  Copying LICENSE.FLAC.txt
  The system cannot find the file specified.
  Copying LICENSE.mikmod.txt
  The system cannot find the file specified.
  Copying LICENSE.modplug.txt
  The system cannot find the file specified.
  Copying LICENSE.ogg-vorbis.txt
  The system cannot find the file specified.
  Copying LICENSE.opus.txt
  The system cannot find the file specified.
  Copying LICENSE.opusfile.txt
  The system cannot find the file specified.
  Copying libmpg123-0.dll
  The system cannot find the file specified.
  Copying LICENSE.mpg123.txt
  The system cannot find the file specified.
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(234,5): error MSB6006: "cmd.exe" exited with code 1.

I am well aware that these files, except LICENSE.mikmod.txt can be found on SDL2_mixer-2.0.4\VisualC\external\lib\x64 of the file I said I downloaded above, but I am not aware how I can make Visual Studio 2019 Community to recognize them. I’ve tried various things, such as adding that directory in the Library Directories property on VC++ Directories, and I’ve also tried copy-pasting them to the directory where the library is to be built, and for the most part that worked, with the exception of LICENSE.mikmod.txt. Can somebody help me with this issue?