无法在Python 3.8虚拟环境中安装Pillow

无法在Python 3.8虚拟环境中安装Pillow 6.2.1。

以下是安装过程中发生的错误。

Command "C:\Users\rajksri2\Documents\venv\rs\Scripts\python.exe -u -c 

> Blockquote

"import setuptools, tokenize;
__file__='C:\\Users\\rajksri2\\AppData\\Local\\Temp\\pip-install-067_effw\\pillow\\setup.py';
f=getattr(tokenize, 'open', open)(__file__);
code=f.read().replace('\r\n', '\n');
f.close();
exec(compile(code, __file__, 'exec'))" install --record C:\Users\rajksri2\AppData\Local\Temp\pip-record-ceg_4pcf\install-record.txt --single-version-externally-managed --compile --install-headers C:\Users\rajksri2\Documents\venv\rs\include\site\python3.8\pillow" 

failed with error code 1 in C:\Users\rajksri2\AppData\Local\Temp\pip-install-067_effw\pillow\