unable to drop publication database from publisher server in transactional replication

Dear All,

we are getting one issue when the time of dropping publication database on publisher server in transactional replication in sql server 2008 r2.

TITLE: Microsoft SQL Server Management Studio
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Could not delete publication 'dbname_Pubs'.

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.50.1600.1&EvtSrc=Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.Replication.ReplicationMenuItem&EvtID=CantDeletePublication&LinkId=20476

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ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

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Could not find stored procedure ''. (Microsoft SQL Server, Error: 2812)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.50.4000&EvtSrc=MSSQLServer&EvtID=2812&LinkId=20476

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BUTTONS:

OK
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mastanvali shaik