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System.Data.Objects.DataClasses.EntityObject with Entity Framework 4

If you for instance create a multi layered application and get the compilation error

The type ‘System.Data.Objects.DataClasses.EntityObject’ is defined in an assembly that is not referenced. You must add a reference to assembly ‘System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’.

when you compile the business layer just add a reference to System.Data.Entity.

This entry was posted on Friday, April 16th, 2010 at 21:28 and is filed under tip. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

5 Responses to “System.Data.Objects.DataClasses.EntityObject with Entity Framework 4”

  1. kae says:
    2011-09-12 at 06:14

    this works..

    Reply
  2. chan says:
    2012-03-15 at 11:19

    thanks man :))

    Reply
  3. xxxwww says:
    2012-06-13 at 07:10

    http://www.britishdeveloper.co.uk/2010/07/systemdataentity-not-referenced-when.html

    Reply
  4. bobby says:
    2013-04-02 at 17:44

    thanks it worked

    Reply
  5. Sneha says:
    2015-02-18 at 07:02

    Did the same but didn’t worked…

    Reply

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