Failed to connect to MySQL database server

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I use Ubuntu 10.04 with XAMPP, and i found this error in database installation step:

* Warning: PDO::__construct(): [2002] Invalid argument (trying to connect via unix://) in DatabaseConnection->__construct() (line 286 of /opt/lampp/htdocs/abednego/includes/database/database.inc).
*

In order for Drupal to work, and to continue with the installation process, you must resolve all issues reported below. For more help with configuring your database server, see the installation handbook. If you are unsure what any of this means you should probably contact your hosting provider.

Failed to connect to your MySQL database server. MySQL reports the following message: SQLSTATE[HY000] [2002] Invalid argument.
o Are you sure you have the correct username and password?
o Are you sure that you have typed the correct database hostname?
o Are you sure that the database server is running?
For more help, see the installation handbook. If you are unsure what these terms mean you should probably contact your hosting provider.

So tell me what's the problem

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Created by Dplanet 1 year 37 weeks ago
Category: Installation Tags:

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Error while installing. 2 years 35 weeks ago

I am using mysql and i am not able to install drupal.

At the page top:
Warning: PDO::__construct(): [2002] Invalid argument (trying to connect via unix://) in /opt/lampp/htdocs/drupal7dev/includes/database/database.inc on line 324

In the red box:
In order for Drupal to work, and to continue with the installation process, you must resolve all issues reported below. For more help with configuring your database server, see the Installation and upgrading handbook. If you are unsure what any of this means you should probably contact your hosting provider.

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What doesn't?
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Error

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Error 403
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Database configuration
The following error must be resolved before you can continue the installation process:

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* Are you sure you have the correct username and password?
* Are you sure that you have typed the correct database hostname?
* Are you sure that the database server is running?

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In order for Drupal to work, and to continue with the installation process, you must resolve all issues reported below. For more help with configuring your database server, see the installation handbook. If you are unsure what any of this means you should probably contact your hosting provider.

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In order for Drupal to work, and to continue with the installation process, you must resolve all issues reported below. For more help with configuring your database server, see the installation handbook. If you are unsure what any of this means you should probably contact your hosting provider.

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