SQL Merge Replication Error - The server error ocuured on current command,the results,if any, should be discarded

HI

I'm merge replicating between SQL Server 2005 and SQL Compact on mobile devices.

Recently it Stopped Working.And i checked the logs in the replication monitor,it shows below error message

Error messages:
You must rerun snapshot because current snapshot files are obsolete. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147201021)
Get help: http://help/MSSQL_REPL-2147201021

Then i  re-run the snapshot which was 49 % percent complete,then throws the below error

The server error ocuured on current command,the results,if any, should be  discarded

The server error ocuured on current command,the results,if any, should be  discarded

Anyone can help me out to figure out why this error message occurs?

Srikanth[096]