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1Resolving Hex dependencies...2Resolution completed in 0.171s3Unchanged:4  bunch 1.6.45  bunch_native 0.5.26  bundlex 1.5.87  circular_buffer 1.1.08  elixir_make 0.10.09  elixir_uuid 1.2.110  finch 0.24.011  hpax 1.1.012  interactive_cmd 0.1.413  jason 1.4.514  logger_backends 1.0.115  mime 2.0.716  mint 1.11.017  nerves 2.0.0-pre.218  nerves_discovery 0.1.519  nerves_logging 0.2.420  nerves_runtime 0.13.1321  nerves_system_bbb 2.30.222  nerves_system_br 1.34.423  nerves_system_mangopi_mq_pro 0.17.224  nerves_system_qemu_aarch64 0.4.225  nerves_system_rpi0 2.1.226  nerves_system_rpi4 2.1.227  nerves_system_rpi5 2.1.228  nerves_system_trellis 0.5.029  nerves_system_x86_64 1.34.230  nerves_toolchain_aarch64_nerves_linux_gnu 15.3.131  nerves_toolchain_armv6_nerves_linux_gnueabihf 15.3.132  nerves_toolchain_armv7_nerves_linux_gnueabihf 15.3.133  nerves_toolchain_riscv64_nerves_linux_gnu 15.3.134  nerves_toolchain_x86_64_nerves_linux_musl 15.3.135  nerves_uevent 0.1.736  nimble_options 1.1.137  nimble_pool 1.1.038  property_table 0.3.439  qex 0.5.240  req 0.7.541  ring_logger 0.11.742  shmex 0.5.243  tablet 0.3.344  telemetry 1.4.245  toolshed 0.5.046  uboot_env 1.0.247  unifex 1.2.548  video_mixer 2.1.649  zarex 1.0.650All dependencies have been fetched51==> mint52Compiling 1 file (.erl)53Compiling 21 files (.ex)54Generated mint app55==> bunch56Compiling 19 files (.ex)57Generated bunch app58==> zarex59Compiling 1 file (.ex)60Generated zarex app61==> elixir_uuid62Compiling 1 file (.ex)63    warning: use Bitwise is deprecated. import Bitwise instead64    │65  2 │   use Bitwise, only_operators: true66    │   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~67    │68    └─ lib/uuid.ex:2: UUID (module)6970Generated elixir_uuid app71==> qex72Compiling 4 files (.ex)73warning: x..y inside match is deprecated, you must always match on the step: x..y//var or x..y//_ if you want to ignore it74  lib/qex.ex:45: Qex.new/17576Generated qex app77==> nimble_pool78Compiling 2 files (.ex)79Generated nimble_pool app80==> finch81Compiling 23 files (.ex)82Generated finch app83==> req84Compiling 24 files (.ex)85Generated req app86==> bundlex87Compiling 39 files (.ex)88Generated bundlex app89==> bunch_native90Bundlex: Building natives: lib, bunch91Generated bunch_native app92==> shmex93Bundlex: Building natives: lib, shmex94Compiling 2 files (.ex)95Generated shmex app96==> unifex97Bundlex: Building natives: unifex98Compiling 33 files (.ex)99    warning: unused require Bundlex.CNode100    │101  6 │   require Bundlex.CNode102    │   ~103    │104    └─ lib/unifex/cnode.ex:6:3105106Generated unifex app107==> video_mixer108Bundlex: Building natives: mix109could not compile dependency :video_mixer, "mix compile" failed. Errors may have been logged above. You can recompile this dependency with "mix deps.compile video_mixer --force", update it with "mix deps.update video_mixer" or clean it with "mix deps.clean video_mixer"110==> nerves_compatibility_test111** (Mix) Bundlex: Couldn't load OS dependency :libavfilter of package video_mixer. Make sure to follow installation instructions that may be available in the readme of video_mixer.112113Tried the following providers:114115Provider `:pkg_config` couldn't load ["libavfilter"] libraries with pkg-config due to:116	** (BundlexError) pkg-config error:117	Code: 1118	Package libavfilter was not found in the pkg-config search path.119	Perhaps you should add the directory containing `libavfilter.pc'120	to the PKG_CONFIG_PATH environment variable121	Package 'libavfilter', required by 'virtual:world', not found122123