Thread:Project:Support desk/MediaWiki 1.19.0 installation:Creating database user... failed

I am getting following error in installing wiki on a hosted server Please help

Granting permission to user "" failed: A database query syntax error has occurred. The last attempted database query was: "GRANT ALL PRIVILEGES ON `deep2801_wiki`.* TO ''@'localhost'" from within function "MysqlInstaller::setupUser". Database returned error "1044: Access denied for user 'deep2801_wiki'@'%' to database 'deep2801_wiki' (localhost)" Backtrace: #0 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\includes\db\Database.php(885): DatabaseBase->reportQueryError('Access denied f...', 1044, 'GRANT ALL PRIVI...', 'MysqlInstaller:...', false) #1 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\includes\installer\MysqlInstaller.php(548): DatabaseBase->query('GRANT ALL PRIVI...', 'MysqlInstaller:...') #2 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\includes\installer\Installer.php(1389): MysqlInstaller->setupUser(Object(MysqlInstaller)) #3 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\includes\installer\WebInstallerPage.php(1142): Installer->performInstallation(Array, Object(MysqlInstaller)) #4 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\includes\installer\WebInstaller.php(254): WebInstaller_Install->execute(Array, Array) #5 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\mw-config\index.php(50): WebInstaller->execute #6 E:\inetpub\vhosts\commistech.com\httpdocs\wiki\mw-config\index.php(18): wfInstallerMain #7 {main}