1、使用purge卸載
sudo apt-get purge nginx nginx-common nginx-full
2、重新安裝
sudo apt-get install nginx
3、測試
nginx -t
4、若上述方案不起作用,請嘗試使用dpkg的--force-confmiss選項
sudo dpkg --force-confmiss -i /var/cache/apt/archives/nginx-common_*.deb
sudo apt-get purge nginx nginx-common nginx-full
sudo apt-get install nginx
nginx -t
sudo dpkg --force-confmiss -i /var/cache/apt/archives/nginx-common_*.deb