[Plugin: WordPress Sphinx Search Plugin] sphnix installation error

at the time of run the indexer of sphinx search plug-in v1.0.0 i found the error as

using config file ‘/opt/lampp/sphinx/etc/sphinx.conf’…
indexing index ‘delta_wordpress’…
ERROR: index ‘delta_wordpress’: sql_connect: Can’t connect to local MySQL server through socket ‘/var/run/mysqld/mysqld.sock’ (2) (DSN=mysql://root:***@localhost:3306/yuvan).
total 0 docs, 0 bytes
total 0.010 sec, 0.00 bytes/sec, 0.00 docs/sec
indexing index ‘main_wordpress’…
ERROR: index ‘main_wordpress’: sql_connect: Can’t connect to local MySQL server through socket ‘/var/run/mysqld/mysqld.sock’ (2) (DSN=mysql://root:***@localhost:3306/yuvan).
total 0 docs, 0 bytes
total 0.010 sec, 0.00 bytes/sec, 0.00 docs/sec

like pls help to resolve this error

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