我在raspberry-pi上使用raspbian发行版在本地运行apache2 webserver。
直到它突然无法启动它才能正常工作
sudo /etc/init.d/apache2 start，产生以下错误：
[....]启动apache2（通过systemctl）：apache2.serviceJob for apache2.service失败了。请参阅＆system;系统状态apache2.service＆＃39;和 ＆＃39; journalctl -xn＆＃39;详情。失败！
使用apt-get删除并重新安装并不能解决它.systemctl status显示以下条目：
> Apr 22 11:27:16 raspberrypi apache2[18234]: [344B blob data] Apr 22
> 11:27:16 raspberrypi apache2[18234]: [293B blob data] Apr 22 11:27:16
> raspberrypi apache2[18234]: [293B blob data] Apr 22 11:27:16
> raspberrypi apache2[18234]: [293B blob data] Apr 22 11:27:16
> raspberrypi apache2[18234]: [293B blob data] Apr 22 11:27:16
> raspberrypi apache2[18234]: Action 'configtest' failed. Apr 22
> 11:27:16 raspberrypi apache2[18234]: The Apache error log may have
> more information. Apr 22 11:27:16 raspberrypi systemd[1]:
> apache2.service: control process exited, code=exited status=1 Apr 22
> 11:27:16 raspberrypi systemd[1]: Failed to start LSB: Apache2 web
> server. Apr 22 11:27:16 raspberrypi systemd[1]: Unit apache2.service
> entered failed state.
journalctl -xn yield：
> -- Logs begin at Sun 2017-04-23 07:06:12 UTC, end at Sun 2017-04-23 12:38:48 UTC. -- Apr 23 12:38:30 raspberrypi apache2[3292]: [2.0K blob
> data] Apr 23 12:38:30 raspberrypi apache2[3292]: [1.7K blob data] Apr
> 23 12:38:30 raspberrypi apache2[3292]: Action 'configtest' failed. Apr
> 23 12:38:30 raspberrypi apache2[3292]: The Apache error log may have
> more information. Apr 23 12:38:31 raspberrypi systemd[1]:
> apache2.service: control process exited, code=exited status=1 Apr 23
> 12:38:31 raspberrypi systemd[1]: Failed to start LSB: Apache2 web
> server.
> -- Subject: Unit apache2.service has failed
> -- Defined-By: systemd
> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
> --
> -- Unit apache2.service has failed.
> --
> -- The result is failed. Apr 23 12:38:31 raspberrypi systemd[1]: Unit apache2.service entered failed state. Apr 23 12:38:31 raspberrypi
> sudo[3278]: pam_unix(sudo:session): session closed for user root Apr
> 23 12:38:48 raspberrypi sudo[3345]: pi : TTY=pts/0 ;
> PWD=/etc/apache2/conf-enabled ; USER=root ; COMMAND=/bin/journalctl
> -xn Apr 23 12:38:48 raspberrypi sudo[3345]: pam_unix(sudo:session): session opened for user root by pi(uid=0)
不幸的是，apache error.log不包含任何有用的信息。但是，如果我运行apache2 configtest，我会得到一个＆＃34;文件名太长＆＃34;错误。
奇怪的是，即使在格式化我的SD卡并在其上放置分发图像的新副本并重新安装apache2后，错误仍然存在。
我该怎么办？