apache web server 沒法啓動 Mac

Hello, 

I'm having an issue with Apache not starting on a band new install of Mac OS X Yosemite (10.10.2). I followed the advice of several threads and here's where I'm at so far. 

I ran: 

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sudo /Applications/AMPPS/apache/bin/httpd

and: 

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sudo /Applications/AMPSS/apache/bin/httpd -k start

and both gave the same result: 

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(48)Address already in use: AH00072: make_sock: could not bind to address [::]:80 
(48)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80 
no listening sockets available, shutting down 
AH00015: Unable to open logs 

What I've tried: 
1. I tried (as suggested somewhere in here) stopping a pre-existing apache with: 

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sudo apachectl stop

I get: 

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/System/Library/LaunchDaemons/org.apache.httpd.plist: Could not find specified service

2. One place said to try hunting down what is using port 80 by using: 

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sudo lsof | grep LISTEN

I couldn't see port 80 anywhere, but I read that maybe :http is the same? I then used ps [pid] on any commands that were run on :httpd and all it says under command is httpd, which I'm guess is in fact apache? But I don't know how to stop them. 

I have found something that works...at least for now. I have not tried restarting yet, so we'll see if it is permanent, but I found on another thread: 

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sudo killall httpd

After this, AMPPS worked.

 

ref: http://www.softaculous.com/board/index.php?tid=7235