For starters.
There is no official download for 1.8 yet.
That means you got it from CVS.
That also means, that we can't guarentie the stability of it.
Upgrading a site to 1.8 is even more tricky.

So you can go back to 1.6 by just deleting everything and putting back your backupfiles and backup database... (And I do hope for you you made a backup !)

Yes, i get 1.8 from CVS

I checked again, It was seem server problem. I tried to install to other server and going well.

The server admin said maybe that was a security problem..

thank btw...

I got other problem after install 1.8

The messege"
Fatal error: Call to undefined function: mb_convert_variables() in /home/andalas/public_html/inc/MODEL/settings/_locale.funcs.php on line 176 ".

Could any body help?
Thanks

There's no nice way to say this, so I'll be blunt

1.8cvs is constantly being updated as it's the very latest version of the code base as it's being developed. If you can't cure errors and do all sorts of stuff to keep your database intact then you shouldn't be installing it.

Because of this it's a totally unsuported version, and this forum exists for people to report problems that they have found in it, not for helping people who have a problem with installing/using it.

¥

yosemirza, take a look at my topic here;
http://forums.b2evolution.net//viewtopic.php?t=8203

And database curruption would be quite hard in v1.8 releases, unless the developers really screwed something up.
But yeh, think of using cvs builds as beta testing, you "shouldn't" beta test something for general use, but so you can help in the projects development, e.g. submit bug reports, feature requests, suggestions, critism, etc.

Thank you

That error messege appear when I set _locale.php "

/**
* Enable localization?
*
* Set to 0 to disable localization.
* Set to 1 to enable gettext localization if supported (not recommended).
* Note: you will have to compile the .po files with msgfmt before this will work.
* Also, the locale information has to be available on the system ("locale -a" with Unix)
* Set to 2 to enable b2evo advanced localization (recommended).
*
* @global integer
*/
$use_l10n = 2;

When I change to " $use_l10n = 0; " or " $use_l10n = 1; " that error messege gone and I can see my blog.

I set two blog with 1.8 from CVS

1. www.i-en-ai.com with that setting ( $use_l10n = 2; ), It worked well
2. www. andalas.biz with the setting ( $use_l10n = 2; ) didn't worked, but with ( $use_l10n = 0; or $use_l10n = 1; ) worked

I hosted domain number 1 at BLUEHOST and number 2 at locat hosting ANDALAN.NET

I've just abstracted the charset conversation, so it should not fail loudly, if the mbstrings extension isn't installed.

It may take some hours, until anonymous CVS catches up, but please test it again then.