I can't install pillow in my venv with pip install Pillow. This is the error message that I got. Building wheel for Pillow (pyproject.toml) ... error error: subprocess-exited-with-error × Building wheel for Pillow (pyproject.toml) did not run successfully. │ exit code: 1 ╰─> [199 lines of output] running bdist_wheel running build running build_py creating build creating build\lib.win32-cpython-39 creating build\lib.win32-cpython-39\PIL copying src\PIL\BdfFontFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\BlpImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\BmpImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\BufrStubImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ContainerIO.py -> build\lib.win32-cpython-39\PIL copying src\PIL\CurImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\DcxImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\DdsImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\EpsImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ExifTags.py -> build\lib.win32-cpython-39\PIL copying src\PIL\features.py -> build\lib.win32-cpython-39\PIL copying src\PIL\FitsImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\FliImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\FontFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\FpxImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\FtexImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\GbrImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\GdImageFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\GifImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\GimpGradientFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\GimpPaletteFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\GribStubImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\Hdf5StubImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\IcnsImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\IcoImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\Image.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageChops.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageCms.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageColor.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageDraw.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageDraw2.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageEnhance.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageFilter.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageFont.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageGrab.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageMath.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageMode.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageMorph.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageOps.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImagePalette.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImagePath.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageQt.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageSequence.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageShow.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageStat.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageTk.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageTransform.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImageWin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\ImtImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\IptcImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\Jpeg2KImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\JpegImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\JpegPresets.py -> build\lib.win32-cpython-39\PIL copying src\PIL\McIdasImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\MicImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\MpegImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\MpoImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\MspImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PaletteFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PalmImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PcdImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PcfFontFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PcxImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PdfImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PdfParser.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PixarImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PngImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PpmImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PsdImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PSDraw.py -> build\lib.win32-cpython-39\PIL copying src\PIL\PyAccess.py -> build\lib.win32-cpython-39\PIL copying src\PIL\QoiImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\SgiImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\SpiderImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\SunImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\TarIO.py -> build\lib.win32-cpython-39\PIL copying src\PIL\TgaImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\TiffImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\TiffTags.py -> build\lib.win32-cpython-39\PIL copying src\PIL\WalImageFile.py -> build\lib.win32-cpython-39\PIL copying src\PIL\WebPImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\WmfImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\XbmImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\XpmImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\XVThumbImagePlugin.py -> build\lib.win32-cpython-39\PIL copying src\PIL\_binary.py -> build\lib.win32-cpython-39\PIL copying src\PIL\_deprecate.py -> build\lib.win32-cpython-39\PIL copying src\PIL\_tkinter_finder.py -> build\lib.win32-cpython-39\PIL copying src\PIL\_util.py -> build\lib.win32-cpython-39\PIL copying src\PIL\_version.py -> build\lib.win32-cpython-39\PIL copying src\PIL\__init__.py -> build\lib.win32-cpython-39\PIL copying src\PIL\__main__.py -> build\lib.win32-cpython-39\PIL running egg_info writing src\Pillow.egg-info\PKG-INFO writing dependency_links to src\Pillow.egg-info\dependency_links.txt writing requirements to src\Pillow.egg-info\requires.txt writing top-level names to src\Pillow.egg-info\top_level.txt reading manifest file 'src\Pillow.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' warning: no files found matching '*.c' warning: no files found matching '*.h' warning: no files found matching '*.sh' warning: no files found matching '*.txt' warning: no previously-included files found matching '.appveyor.yml' warning: no previously-included files found matching '.clang-format' warning: no previously-included files found matching '.coveragerc' warning: no previously-included files found matching '.editorconfig' warning: no previously-included files found matching '.readthedocs.yml' warning: no previously-included files found matching 'codecov.yml' warning: no previously-included files found matching 'renovate.json' warning: no previously-included files matching '.git*' found anywhere in distribution warning: no previously-included files matching '*.so' found anywhere in distribution no previously-included directories found matching '.ci' no previously-included directories found matching 'wheels' adding license file 'LICENSE' writing manifest file 'src\Pillow.egg-info\SOURCES.txt' running build_ext The headers or library files could not be found for zlib, a required dependency when compiling Pillow from source. Please see the install instructions at: https://pillow.readthedocs.io/en/latest/installation.html Traceback (most recent call last): File "<string>", line 988, in <module> File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\__init__.py", line 103, in setup return distutils.core.setup(**attrs) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\core.py", line 185, in setup return run_commands(dist) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\core.py", line 201, in run_commands dist.run_commands() File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\dist.py", line 969, in run_commands self.run_command(cmd) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\dist.py", line 989, in run_command super().run_command(command) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command cmd_obj.run() File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\normal\Lib\site-packages\wheel\bdist_wheel.py", line 369, in run self.run_command("build") File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\cmd.py", line 318, in run_command self.distribution.run_command(command) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\dist.py", line 989, in run_command super().run_command(command) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command cmd_obj.run() File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\command\build.py", line 131, in run self.run_command(cmd_name) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\cmd.py", line 318, in run_command self.distribution.run_command(command) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\dist.py", line 989, in run_command super().run_command(command) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command cmd_obj.run() File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\command\build_ext.py", line 88, in run _build_ext.run(self) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\_distutils\command\build_ext.py", line 345, in run self.build_extensions() File "<string>", line 811, in build_extensions __main__.RequiredDependencyException: zlib During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\User\PycharmProjects\Fitness_store\venv\lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 353, in <module> main() File "C:\Users\User\PycharmProjects\Fitness_store\venv\lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 335, in main json_out['return_val'] = hook(**hook_input['kwargs']) File "C:\Users\User\PycharmProjects\Fitness_store\venv\lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 251, in build_wheel return _build_backend().build_wheel(wheel_directory, config_settings, File "C:\Users\User\AppData\Local\Temp\pip-install-effsyhwi\pillow_4d0dd3bf95644f85a6a8bded18a32784\_custom_build\backend.py", line 53, in build_wheel return super().build_wheel(wheel_directory, config_settings, metadata_directory) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\build_meta.py", line 434, in build_wheel return self._build_with_temp_dir( File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\build_meta.py", line 419, in _build_with_temp_dir self.run_setup() File "C:\Users\User\AppData\Local\Temp\pip-install-effsyhwi\pillow_4d0dd3bf95644f85a6a8bded18a32784\_custom_build\backend.py", line 47, in run_setup return super().run_setup(setup_script) File "C:\Users\User\AppData\Local\Temp\pip-build-env-s3czzkka\overlay\Lib\site-packages\setuptools\build_meta.py", line 341, in run_setup exec(code, locals()) File "<string>", line 1005, in <module> __main__.RequiredDependencyException: The headers or library files could not be found for zlib, a required dependency when compiling Pillow from source. Please see the install instructions at: https://pillow.readthedocs.io/en/latest/installation.html [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for Pillow Failed to build Pillow ERROR: Could not build wheels for Pillow, which is required to install pyproject.toml-based projects**your text** I tried to install zlib through MSYS2 in my venv and then to install willow, because that's what the mistake says it's missing, but I encountered the same error message without any success. I'm with 64 bit system. Continue reading...