asp.net - BareMessage="Cannot create an abstract class." -

configuration error

Description: An error during the processing of the configuration file required for the service of this configuration Hui . Please review the specific error details below and modify your configuration file properly.

Parser error message: Can not create an abstract class.

Source error:

  Line 150: & lt; Provider & gt; Line 151: & lt; Clear /> Line 152: & lt; Add name = "NdMSmailship provider" type = "CSW.Web.Security.NDMSMemberProvider" /> Line 153: & lt; / Provider & gt; Line 154: & lt; / Subscription & gt;  

Source file: C: \ DEV \ CSW2 \ src \ CSW.Web \ web.config line: 152

any help Could me I'm going crazy

OK, you can not instantate an abstract class.

Create a new class that handles your essence and uses it.