Apache: "AuthType not set!" 500 Error

It's been a while since I used the Apache httpd web server. I'm firing up a local server for a project and when I try to request localhost/index.html, I get a 500 error and I see this in the error log: [Tue Jan 21 09:23:58 2014] [crit] [client ::1] configuration error: couldn't perform authentication. AuthType not set!: /index.html [Tue Jan 21 09:23:58 2014] [error] an unknown filter was not added

[wlbhiro]

Require all granted [Mon Mar 31 03:54:08 2014] [crit] [client 192.168.1.2] configuration error: couldn't perform authentication. AuthType not set!: /encode/1396202440481_1028873774.mp4 これがでたら上を消す．(設定ファイルから)