MySQL 5.5 ---> MySQL 5.1
lazarus / 16-Databases

----------------------------------------------------------------------
liruomeng · 2012-05-21 16:05

Hi there,
I was having MySQL 5.5 on my Machine. I soon found that there were no
such things like a "TMySQL55Connection", so I down-graded my MySQL 5.5
to MySQL 5.1.

But when I was trying to connect to the server (localhost, in fact),
it throws out an error

'TMySQL51Connection can not work with the installed MySQL client
version: Expected(5.1), got (5.5.18).'

Anyone would kindly help me? Thanks in advance.

----------------------------------------------------------------------
BigChimp · 2012-05-21 16:13

Search the forum, you're not the first with that problem.
You have a mysql version 5.5 client library. Mysql51connection can
only work with a 5.1 client library.

----------------------------------------------------------------------
liruomeng · 2012-05-22 00:55

I had a 5.5-lib, but I think I have a 5.1-lib for the moment. 'Cuz I
have uninstalled MySQL 5.5 and replaced it with a 5.1.

----------------------------------------------------------------------
liruomeng · 2012-05-22 01:35

Thank y'all, I found the problem. Tho I replaced my MySQL 5.5 with
5.1, the `Windows/System32/libmysql.dll' remain unchanged(version
5.5). Replacing it with a 5.1-libmySQL.dll,  all problems are solved.
Thanks again for y'all's concerning.