linux - 尝试安装其他软件包时Nginx出现问题

Question

有些应用程序我试图安装在我的ubuntu服务器上，我一直遇到类似nginx的问题。
我想解决这个问题。我刚开始使用nginx，所以我对它还不熟悉。

Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.
invoke-rc.d: initscript nginx, action "start" failed.
dpkg: error processing package nginx-core (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-core (>= 1.10.0-0ubuntu0.16.04.4) | nginx-full (>= 1.10.0-0ubuntu0.16.04.4) | nginx-light (>= 1.10.0-0ubuntu0.16.04.4) | nginx-extras (>= 1.10.0-0ubuntu0.16.04.4); however:
  Package nginx-core is not configured yet.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.
 nginx depends on nginx-core (<< 1.10.0-0ubuntu0.16.04.4.1~) | nginx-full (<< 1.10.0-0ubuntu0.16.04.4.1~) | nginx-light (<< 1.10.0-0ubuntu0.16.04.4.1~) | nginx-extras (<< 1.10.0-0ubuntu0.16.04.4.1~); however:
  Package nginx-core is not configured yet.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.

dpkg: error processing packagNo apport report written because the error message indicates its a followup error from a previous failure.
e nginx (--configure):
 dependency problems - leaving unconfigured
Setting up clamav-base (0.99.2+dfsg-0ubuntu0.16.04.1) ...
/etc/mail/aliases: 2 aliases, longest 4 bytes, 24 bytes total
Setting up libllvm3.6v5:amd64 (1:3.6.2-3ubuntu2) ...
Setting up libclamav7 (0.99.2+dfsg-0ubuntu0.16.04.1) ...
Setting up clamav-freshclam (0.99.2+dfsg-0ubuntu0.16.04.1) ...
Setting up clamav (0.99.2+dfsg-0ubuntu0.16.04.1) ...
Setting up clamav-daemon (0.99.2+dfsg-0ubuntu0.16.04.1) ...
Setting up clamdscan (0.99.2+dfsg-0ubuntu0.16.04.1) ...
Processing triggers for libc-bin (2.23-0ubuntu5) ...
Processing triggers for systemd (229-4ubuntu13) ...
Processing triggers for ureadahead (0.100.0-19) ...
Errors were encountered while processing:
 nginx-core
 nginx
E: Sub-process /usr/bin/dpkg returned an error code (1)

下面是“systemctl status nginx.service”的结果

● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Wed 2017-02-15 15:17:27 UTC; 1min 40s ago

Feb 15 15:17:26 wordpress-2gb-nyc3-01 nginx[18334]: nginx: [emerg] listen() to [::]:80, backlog 511 failed (98: Address already in use)
Feb 15 15:17:26 wordpress-2gb-nyc3-01 nginx[18334]: nginx: [emerg] listen() to 0.0.0.0:80, backlog 511 failed (98: Address already in use)
Feb 15 15:17:26 wordpress-2gb-nyc3-01 nginx[18334]: nginx: [emerg] listen() to [::]:80, backlog 511 failed (98: Address already in use)
Feb 15 15:17:27 wordpress-2gb-nyc3-01 nginx[18334]: nginx: [emerg] listen() to 0.0.0.0:80, backlog 511 failed (98: Address already in use)
Feb 15 15:17:27 wordpress-2gb-nyc3-01 nginx[18334]: nginx: [emerg] listen() to [::]:80, backlog 511 failed (98: Address already in use)
Feb 15 15:17:27 wordpress-2gb-nyc3-01 nginx[18334]: nginx: [emerg] still could not bind()
Feb 15 15:17:27 wordpress-2gb-nyc3-01 systemd[1]: nginx.service: Control process exited, code=exited status=1
Feb 15 15:17:27 wordpress-2gb-nyc3-01 systemd[1]: Failed to start A high performance web server and a reverse proxy server.
Feb 15 15:17:27 wordpress-2gb-nyc3-01 systemd[1]: nginx.service: Unit entered failed state.
Feb 15 15:17:27 wordpress-2gb-nyc3-01 systemd[1]: nginx.service: Failed with result 'exit-code'.

Answer 1

第一个日志是说您应该安装以下软件包：
nginx full，nginx light，nginx extras。
尝试（具有根权限）：

apt-get install nginx-full nginx-light nginx-extras

第二个日志显示端口80已经被使用。可以使用命令检查：

netstat -putan | grep 80

所以或者有另一个进程正在运行这个端口或者nginx已经在运行。