MOC alpha4 does not work

I installed ubuntu 10.10 with Turkish language and locale settings. (a fresh install)

Neither the MOC alpha4 from ubuntu 10.10 repos nor the one I compiled from svn works. Since MOC alpha4 works with the English ubuntu, I assume that this is a problem with the Turkish version.

hasan@narval:~$ mocp

FATAL_ERROR: Tried to get wrong option 'ID3v1TagsEncoding'!

If I add the default config file to ~/.moc then I get:

hasan@narval:~$ mocp
Wrong option name: 'Mp3IgnoreCRCErrors'.
FATAL_ERROR: Error in config file, line 24.

I tried commenting out various lines in the config file and these are the errors I get along the way:

hasan@narval:~$ mocp
Wrong option name: 'InputBuffer'.
FATAL_ERROR: Error in config file, line 49.

hasan@narval:~$ mocp
Wrong option name: 'StartInMusicDir'.
FATAL_ERROR: Error in config file, line 120.

hasan@narval:~$ mocp
Wrong option name: 'ASCIILines'.
FATAL_ERROR: Error in config file, line 171.

hasan@narval:~$ mocp
Wrong option name: 'CanStartInPlaylist'.
FATAL_ERROR: Error in config file, line 277.

hasan@narval:~$ mocp

FATAL_ERROR: Tried to get wrong option 'InputBuffer'!

Then I deleted ~/.moc/config and gave the command mocp -D to get:

hasan@narval:~$ mocp -D
Loading plugins from /usr/lib/moc/decoder_plugins...
Loading plugin libaac_decoder...
OK
Loading plugin libflac_decoder...
OK
Loading plugin libmodplug_decoder...
OK
Loading plugin libmp3_decoder...

FATAL_ERROR: Tried to get wrong option 'ID3v1TagsEncoding'!

Where is mocp supposed to create the log files? Neither "man mocp" nor the website tells where to find them. I looked all around but couldn't find any log files. It definitely did not create logs in the current (~) directory.

Then I installed

moc_2.5.0~alpha3+svn20080629-2ubuntu1_amd64.deb

and some dependencies from ubuntu 9.10 repos. This version works in my ubuntu 10.10 without any problems.

So alpha3 works in ubuntu 10.10 with Turkish settings but alpha4 fails to work.

Anything I can do to help devs to pinpoint the problem?

Why did you install dependencies from 9.10 repos if you are using 10.10? I run 10.04 (LTS) and have no problem with version moc 2.5.0-alpha4.

It also sounds like you did not install it through Ubuntu's repositories, because the version of mocp available for 10.10 is "1:2.5.0~alpha4+svn20091009-1build4", that is alpha 4 of release 2.5, as you can see http://packages.ubuntu.com/natty/moc

So you should remove all packages that you installed from 9.10 and the alpha 3, and then simply do
$ sudo apt-get install mocp
and everything should turn out OK.