Installation of dlib with pip fails on Windows 10

I tried a lot to install pip install dlib but it always shows an error and I reinstalled cmake.
I got the error:
pip install dlib
Collecting dlib
  Using cached https://files.pythonhosted.org/packages/1e/62/aacb236d21fbd08148b1d517d58a9d80ea31bdcd386d26f21f8b23b1eb28/dlib-19.18.0.tar.gz
Building wheels for collected packages: dlib
  Building wheel for dlib (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'c:program filespython37python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\setup.py'"'"'; __file__='"'"'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:UsershpAppDataLocalTemppip-wheel-0eyy_3vd' --python-tag cp37
       cwd: C:UsershpAppDataLocalTemppip-install-yynf7muedlib
  Complete output (55 lines):
  running bdist_wheel
  running build
  running build_py
  package init file 'dlib__init__.py' not found (or not a regular file)
  running build_ext
  Building extension for Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)]
  Invoking CMake setup: 'cmake C:UsershpAppDataLocalTemppip-install-yynf7muedlibtoolspython -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:UsershpAppDataLocalTemppip-install-yynf7muedlibbuildlib.win-amd64-3.7 -DPYTHON_EXECUTABLE=c:program filespython37python.exe -DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:UsershpAppDataLocalTemppip-install-yynf7muedlibbuildlib.win-amd64-3.7 -A x64'
  -- Building for: NMake Makefiles
  CMake Error at CMakeLists.txt:3 (project):
    Generator

      NMake Makefiles

    does not support platform specification, but platform

      x64

    was specified.


  CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
  CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
  -- Configuring incomplete, errors occurred!
  See also "C:/Users/hp/AppData/Local/Temp/pip-install-yynf7mue/dlib/build/temp.win-amd64-3.7/Release/CMakeFiles/CMakeOutput.log".
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "C:UsershpAppDataLocalTemppip-install-yynf7muedlibsetup.py", line 261, in <module>
      'Topic :: Software Development',
    File "c:program filespython37libsite-packagessetuptools__init__.py", line 145, in setup
      return distutils.core.setup(**attrs)
    File "c:program filespython37libdistutilscore.py", line 148, in setup
      dist.run_commands()
    File "c:program filespython37libdistutilsdist.py", line 966, in run_commands
      self.run_command(cmd)
    File "c:program filespython37libdistutilsdist.py", line 985, in run_command
      cmd_obj.run()
    File "c:program filespython37libsite-packageswheelbdist_wheel.py", line 192, in run
      self.run_command('build')
    File "c:program filespython37libdistutilscmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "c:program filespython37libdistutilsdist.py", line 985, in run_command
      cmd_obj.run()
    File "c:program filespython37libdistutilscommandbuild.py", line 135, in run
      self.run_command(cmd_name)
    File "c:program filespython37libdistutilscmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "c:program filespython37libdistutilsdist.py", line 985, in run_command
      cmd_obj.run()
    File "C:UsershpAppDataLocalTemppip-install-yynf7muedlibsetup.py", line 135, in run
      self.build_extension(ext)
    File "C:UsershpAppDataLocalTemppip-install-yynf7muedlibsetup.py", line 172, in build_extension
      subprocess.check_call(cmake_setup, cwd=build_folder)
    File "c:program filespython37libsubprocess.py", line 347, in check_call
      raise CalledProcessError(retcode, cmd)
  subprocess.CalledProcessError: Command '['cmake', 'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\tools\python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\build\lib.win-amd64-3.7', '-DPYTHON_EXECUTABLE=c:\program files\python37\python.exe', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\build\lib.win-amd64-3.7', '-A', 'x64']' returned non-zero exit status 1.
  ----------------------------------------
  ERROR: Failed building wheel for dlib
  Running setup.py clean for dlib
Failed to build dlib
Installing collected packages: dlib
    Running setup.py install for dlib ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:program filespython37python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\setup.py'"'"'; __file__='"'"'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:UsershpAppDataLocalTemppip-record-qzmuuf53install-record.txt' --single-version-externally-managed --compile
         cwd: C:UsershpAppDataLocalTemppip-install-yynf7muedlib
    Complete output (57 lines):
    running install
    running build
    running build_py
    package init file 'dlib__init__.py' not found (or not a regular file)
    running build_ext
    Building extension for Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)]
    Invoking CMake setup: 'cmake C:UsershpAppDataLocalTemppip-install-yynf7muedlibtoolspython -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:UsershpAppDataLocalTemppip-install-yynf7muedlibbuildlib.win-amd64-3.7 -DPYTHON_EXECUTABLE=c:program filespython37python.exe -DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:UsershpAppDataLocalTemppip-install-yynf7muedlibbuildlib.win-amd64-3.7 -A x64'
    -- Building for: NMake Makefiles
    CMake Error at CMakeLists.txt:3 (project):
      Generator

        NMake Makefiles

      does not support platform specification, but platform

        x64

      was specified.


    CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
    CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
    -- Configuring incomplete, errors occurred!
    See also "C:/Users/hp/AppData/Local/Temp/pip-install-yynf7mue/dlib/build/temp.win-amd64-3.7/Release/CMakeFiles/CMakeOutput.log".
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:UsershpAppDataLocalTemppip-install-yynf7muedlibsetup.py", line 261, in <module>
        'Topic :: Software Development',
      File "c:program filespython37libsite-packagessetuptools__init__.py", line 145, in setup
        return distutils.core.setup(**attrs)
      File "c:program filespython37libdistutilscore.py", line 148, in setup
        dist.run_commands()
      File "c:program filespython37libdistutilsdist.py", line 966, in run_commands
        self.run_command(cmd)
      File "c:program filespython37libdistutilsdist.py", line 985, in run_command
        cmd_obj.run()
      File "c:program filespython37libsite-packagessetuptoolscommandinstall.py", line 61, in run
        return orig.install.run(self)
      File "c:program filespython37libdistutilscommandinstall.py", line 545, in run
        self.run_command('build')
      File "c:program filespython37libdistutilscmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "c:program filespython37libdistutilsdist.py", line 985, in run_command
        cmd_obj.run()
      File "c:program filespython37libdistutilscommandbuild.py", line 135, in run
        self.run_command(cmd_name)
      File "c:program filespython37libdistutilscmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "c:program filespython37libdistutilsdist.py", line 985, in run_command
        cmd_obj.run()
      File "C:UsershpAppDataLocalTemppip-install-yynf7muedlibsetup.py", line 135, in run
        self.build_extension(ext)
      File "C:UsershpAppDataLocalTemppip-install-yynf7muedlibsetup.py", line 172, in build_extension
        subprocess.check_call(cmake_setup, cwd=build_folder)
      File "c:program filespython37libsubprocess.py", line 347, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['cmake', 'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\tools\python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\build\lib.win-amd64-3.7', '-DPYTHON_EXECUTABLE=c:\program files\python37\python.exe', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\build\lib.win-amd64-3.7', '-A', 'x64']' returned non-zero exit status 1.
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:program filespython37python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\setup.py'"'"'; __file__='"'"'C:\Users\hp\AppData\Local\Temp\pip-install-yynf7mue\dlib\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:UsershpAppDataLocalTemppip-record-qzmuuf53install-record.txt' --single-version-externally-managed --compile Check the logs for full command output.
Answer

Here I got the error that line
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
set CMake path into environment variable (As Shown in Figure)
Installing Visual Studio build tool latest version link: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2017
after installing the Visual studio build tool select the package which needed and download it.
after download & installing successfully visual studio install dlib by commanding in CMD(ADMINISTRATOR) pip install dlib
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Answer
