Cannot install ffmpeg in linux

[LItwOK]

Platform: Linux
Package: ffmpeg:x64-linux
Vcpkg version: 2018.11.23-unknownhash
Description:
I was going to install pangolin, but a error occured and the log was like:

➜  vcpkg git:(master) ./vcpkg install pangolin
The following packages will be built and installed:
  * ffmpeg[core]:x64-linux
  * glew[core]:x64-linux
    pangolin[core]:x64-linux
Additional packages (*) will be modified to complete this operation.
Starting package 1/3: ffmpeg:x64-linux
Building package ffmpeg[core]:x64-linux... 
-- Using cached /home/lenovo/litw/dependencies/vcpkg/downloads/ffmpeg-4.1.tar.bz2
-- Applying patch /home/lenovo/litw/dependencies/vcpkg/ports/ffmpeg/create-lib-libraries.patch
-- Applying patch failed. This is expected if this patch was previously applied.
-- Applying patch /home/lenovo/litw/dependencies/vcpkg/ports/ffmpeg/detect-openssl.patch
-- Applying patch failed. This is expected if this patch was previously applied.
-- Applying patch /home/lenovo/litw/dependencies/vcpkg/ports/ffmpeg/configure_opencv.patch
-- Applying patch failed. This is expected if this patch was previously applied.
CMake Error at scripts/cmake/vcpkg_acquire_msys.cmake:43 (message):
  vcpkg_acquire_msys() can only be used on Windows hosts
Call Stack (most recent call first):
  ports/ffmpeg/portfile.cmake:29 (vcpkg_acquire_msys)
  scripts/ports.cmake:71 (include)

Says I can only use ffmpeg on Windows? And when I tried to install ffmpeg seperately, same problem rose again:

➜  vcpkg git:(master) ./vcpkg install ffmpeg
The following packages will be built and installed:
    ffmpeg[core]:x64-linux
Starting package 1/1: ffmpeg:x64-linux
Building package ffmpeg[core]:x64-linux... 
-- Using cached /home/lenovo/litw/dependencies/vcpkg/downloads/ffmpeg-4.1.tar.bz2
-- Applying patch /home/lenovo/litw/dependencies/vcpkg/ports/ffmpeg/create-lib-libraries.patch
-- Applying patch failed. This is expected if this patch was previously applied.
-- Applying patch /home/lenovo/litw/dependencies/vcpkg/ports/ffmpeg/detect-openssl.patch
-- Applying patch failed. This is expected if this patch was previously applied.
-- Applying patch /home/lenovo/litw/dependencies/vcpkg/ports/ffmpeg/configure_opencv.patch
-- Applying patch failed. This is expected if this patch was previously applied.
CMake Error at scripts/cmake/vcpkg_acquire_msys.cmake:43 (message):
  vcpkg_acquire_msys() can only be used on Windows hosts
Call Stack (most recent call first):
  ports/ffmpeg/portfile.cmake:29 (vcpkg_acquire_msys)
  scripts/ports.cmake:71 (include)

Tried:
I've tried ./vcpkg update and git pull, but this made no difference.
And I installed ffmpeg via apt: sudo apt install ffmpeg. Also didn't work.

Is there any advice? Or do I have to transplant all my codes into Windows if I have to use vcpkg?

[rayworks]

Same issue on Mac (OS 10.14.3):

Package: ffmpeg:x64-osx
Vcpkg version: 2018.11.23-unknownhash

[nussetorten]

👍

[Trapov]

Same problem.

The following packages will be built and installed:
    ffmpeg[core]:x64-linux
Starting package 1/1: ffmpeg:x64-linux
Building package ffmpeg[core]:x64-linux... 
-- Using cached /home/dmitriy/projects/common/vcpkg/downloads/ffmpeg-4.1.tar.bz2
-- Applying patch /home/dmitriy/projects/common/vcpkg/ports/ffmpeg/create-lib-libraries.patch
-- Applying patch failed. This is expected if this patch was previously applied.
-- Applying patch /home/dmitriy/projects/common/vcpkg/ports/ffmpeg/detect-openssl.patch
-- Applying patch failed. This is expected if this patch was previously applied.
-- Applying patch /home/dmitriy/projects/common/vcpkg/ports/ffmpeg/configure_opencv.patch
-- Applying patch failed. This is expected if this patch was previously applied.
CMake Error at scripts/cmake/vcpkg_acquire_msys.cmake:43 (message):
  vcpkg_acquire_msys() can only be used on Windows hosts
Call Stack (most recent call first):
  ports/ffmpeg/portfile.cmake:29 (vcpkg_acquire_msys)
  scripts/ports.cmake:71 (include)


Error: Building package ffmpeg:x64-linux failed with: BUILD_FAILED
Please ensure you're using the latest portfiles with `.\vcpkg update`, then
submit an issue at https:/Microsoft/vcpkg/issues including:
  Package: ffmpeg:x64-linux
  Vcpkg version: 2018.11.23-unknownhash

Additionally, attach any relevant sections from the log files above.

[sbr-dev]

Hi all,
Sill having this problem. Has anyone found a fix or still waiting for a PR to Vcpkg repos?