3 tier error

Question

 DL FILE COULD NOT BE FOUND

Error    18    'MagnaBL.PAYMENTREGISTERBL' does not contain a definition for 'fnPayRegView' and no extension method 'fnPayRegView' accepting a first argument of type 'MagnaBL.PAYMENTREGISTERBL' could be found (are you missing a using directive or an assembly reference?)    E:\MY PROJECT\SABARIGIRI 24-6-2013\SABARIGIRI CAPITAL SERVICES\MAGNA\MAGNA\PaymentRegister.cs    36    39    MAGNA




Error    2    The type or namespace name 'PaymentRegisterDL' could not be found (are you missing a using directive or an assembly reference?)    E:\MY PROJECT\SABARIGIRI 24-6-2013\SABARIGIRI CAPITAL SERVICES\MagnaBL\MagnaBL\PaymentRegisterBL.cs    54    13    MagnaBL





Error    3    The type or namespace name 'PaymentRegisterDL' could not be found (are you missing a using directive or an assembly reference?)    E:\MY PROJECT\SABARIGIRI 24-6-2013\SABARIGIRI CAPITAL SERVICES\MagnaBL\MagnaBL\PaymentRegisterBL.cs    54    58    MagnaBL