[Typo3] Message d'erreur Typo3

bonsoir;

après l’installation de typo3 j'ai ce message d'erreur dans le browser

Code:

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Uncaught TYPO3 Exception
#1293617741: Database Error: The current username, password or host was not accepted when the connection to the database was attempted to be established! 
 
RuntimeException thrown in file
C:\wamp\www\---------\typo3\sysext\cms\tslib\class.tslib_fe.php in line 516.
 
2 tslib_fe::connectToDB()
 
C:\wamp\www\---------\typo3\sysext\cms\tslib\index_ts.php:
00220: 
00221: 
00222: $TSFE->connectToDB();
00223: 
00224:  // In case of a keyword-authenticated preview, re-initialize the TSFE object:
 
1 require("C:\wamp\www\---------\typo3\sysext\cms\tslib\index_ts.php")
 
C:\wamp\www\---------\index.php:
00082: // ******************
00083: 
00084: require (PATH_tslib.'index_ts.php');
00085: 
00086: ?>

c'est du a quoi j'ai pas pu résoudre ce problème merci