Solution of

Posted on Sun 05 February 2012 in General

I have upgraded my macbook from snow leopard to lion. I have to test some python-cgi, for that i want to use native apache that i shipped with mac operating system. But when i click the checkbox to turn it on it displays a dash in the checkbox, changes from 'Off' to 'starting...', and the gray indicator turns orange. This lasts for about a second then it turns off again.

I went on google to find some idea! After two days of research i didn't get anything. I have decided to revert back to snow leapard due to such frustration.

But then i got the solution.
As you can see in the screenshot of my terminal;

When i did "sudo apachectl --help"
it comes as follow:
#################
dyld: Library not loaded: /usr/lib/libpq.5.dylib
Referenced from: /usr/sbin/httpd
Reason: image not found
/usr/sbin/apachectl: line 90: 1338 Trace/BPT trap: 5 \$HTTPD \$ARGV
#################

so i went inside of the /usr/sbin and executed httpd in terminal,from here it become clear that "libpq.5.dylib" is not there. So i went inside /usr/lib/ to see which one i have. I found that "libpq.5.3.dylib" is there. And this is what i am looking for.

Even i have tried to replace it with back-up "libpq.5.dylib.backup", but again it was not there. At-last i have created a symbolic link from "/usr/lib/libpq.5.3.dylib" to "/usr/lib/libpq.5.dylib":

"sudo ln -s /usr/lib/libpq.5.3.dylib /usr/lib/libpq.5.dylib"

Now go back to System preferences -> Sharing -> click on the "Web sharing"

After few tapping on the same location it turns on, and "http://localhost/" displays "It Works!" :)