Too long boot time

The machine stopped at logo screen for more than 5 minutes and i check the control panel and find a message

ImportServer: <MDSImporterWrangler: 0x7ff7df30dbd0> still waiting for plug-in info from mdworker

Waiting here for almost 10 minutes

Does anyone can help me solve it?

i'v got a MBP 2011 later with lion 10.7.4