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The provider did not return a ProviderManifest instance

    Question

  • Hi!

    We are developing an Entity framework data provider for Oracle server.

    We have generated an .edmx file using the Entity Data Model wizard in Visual Studio 2008 and Core Lab OraDirect .NET data provider. The file is correct and we are able to interact with Oracle database.


    After rebuild or after closing/opening VS2008 we are facing

      Error 168 "The provider did not return a ProviderManifest instance. Could
      not determine store version; a valid store connection or a version hint is
      required."

    Could you please describe the reason of this design time error and possible solutions?


    Best regards,

    Core Lab Development Team

    Thursday, April 17, 2008 4:16 PM

Answers

  •  

    Hi -

     

    Can you try the workaround below (first suggested in this thread:  http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2846178&SiteID=1)

     

          1.  Start Visual Studio.

          2.  Open your solution/project that contains the EDMX file.

          3.  Immediately close the solution (via "File|Close Solution".  Don't close VS, just close the solution)

          4.  re-open the solution inside VS.

     

    This is fixed in current internal builds.

     

    Thanks,

     

    Mike Kaufman

    Microsoft

     

    Monday, April 21, 2008 4:46 PM
    Moderator

All replies

  •  

    Hi -

     

    Can you try the workaround below (first suggested in this thread:  http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2846178&SiteID=1)

     

          1.  Start Visual Studio.

          2.  Open your solution/project that contains the EDMX file.

          3.  Immediately close the solution (via "File|Close Solution".  Don't close VS, just close the solution)

          4.  re-open the solution inside VS.

     

    This is fixed in current internal builds.

     

    Thanks,

     

    Mike Kaufman

    Microsoft

     

    Monday, April 21, 2008 4:46 PM
    Moderator
  • Hi Mike!

    I have seen that post already.
    (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2846178&SiteID=1)
    As a temporary solution it's ok. Even without that steps there are no problems in run time.
    Glad to hear that the issue is fixed.
    Thank you guys.

    Best regards,

    Core Lab Development Team

    Tuesday, April 22, 2008 10:47 AM
  • i'm fixed it (i use vs 2013)
    first. you must be user "model first" in entity framework. add file ado.net entity framework, and after create connection string, but you must be choose entity framework 5 (don't choose entity framework 6.0 - i don't know why, if you choose 6 - it's not finished). if you user vs 2012, you alse must be choose 5.0

    see picture in link
    https://skydrive.live.com/?cid=315D95D87E4676AF&id=315D95D87E4676AF!5777#cid=315D95D87E4676AF&id=315D95D87E4676AF!5778&v=3

    file 1.png

    after, you drap listview, gridview ro something else and choose entity datasource, sure error
    see picture
    22.png

    you must update entyti framework by nuget in 6.0.2 or new

    see picture
    33.png

    in the end, choose from menu build => rebuild solution.

    And after close solution in menu file ( don't exit visual studio, only close solution)

    now, open again and choose EntityDataSource again, it's successfuly.
    see picture
    44.png

    hi, note, step by step carefully, if not it's error.

    khacnguyen

    Sunday, December 29, 2013 9:54 PM