[vcpkg] configure failed because 'Could not find a package configuration file provided by "libSRTP"'

[vipcxj]

This is my vcpkg.json

{
  "dependencies": [
    "ffmpeg",
    "libdatachannel",
    "poco",
    "socket-io-client"
  ]
}

This is my CMakePresets.json

{
    "version": 3,
    "configurePresets": [
        {
            "name": "default",
            "binaryDir": "${sourceDir}/build",
            "cacheVariables": {
                "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
            }
        }
    ]
}

When I configure, errr raised:

  Could not find a package configuration file provided by "libSRTP" with any
  of the following names:

    libSRTPConfig.cmake
    libsrtp-config.cmake

  Add the installation prefix of "libSRTP" to CMAKE_PREFIX_PATH or set
  "libSRTP_DIR" to a directory containing one of the above files.  If
  "libSRTP" provides a separate development package or SDK, be sure it has
  been installed.

If I change vcpkg.json to:

{
  "dependencies": [
    "ffmpeg",
    {
      "name": "libdatachannel",
      "features": [
        "srtp"
      ]
    },
    "poco",
    "socket-io-client"
  ]
}

This error raised:

CMake Error at /home/ps/workspace/projects/vcpkg/scripts/buildsystems/vcpkg.cmake:598 (_add_executable):
  Target "demo" links to target "unofficial::usrsctp::usrsctp" but the target
  was not found.  Perhaps a find_package() call is missing for an IMPORTED
  target, or an ALIAS target is missing?

I think this issue is caused by pr#35618

[vipcxj]

It seems that I should raise the issue in vcpkg, so close it, The new issue is here