Error: Cannot convert lambda expression to type 'int' because it is not a delegate type

This is the source code( I am using CodeSmith Tools):
public static int Delete(this System.Data.Linq.Table table, int pKProgramID)
{
return table.Delete(p => p.PKProgramID == pKProgramID);
}

I am getting this error:
Cannot convert lambda expression to type 'int' because it is not a delegate type C:\Projects\New\EAccreditation.Data\Queries\ProgramsExtensions.Generated.cs

Please, advised
Thank you

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