SQLExpress database file auto-creation error:

Discussion in 'ASP.NET 2.0' started by cdacey, Mar 29, 2008.

  1. Hi everyone

    I am trying to use the built in security controls in Visual Studio Web Developer. I attached a login control to my sign in page and used the Web Administration wizard to save my users and roles. Everyting seemed to be fine. I am using a local SQLdatabase (non default instance) to store the Web Administration security info (users, roels). I used used the aspnet_regsql.exe wizard to link my security to the proper database. Everything works great on my development environment, and when I sign in it brings me to the proper url page.

    My problem is that when I publish my site and then try to sign in using the login control I get the following message :

    An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
    Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

    SQLExpress database file auto-creation error:




    The connection string specifies a local Sql Server Express instance using a database location within the applications App_Data directory. The provider attempted to automatically create the application services database because the provider determined that the database does not exist. The following configuration requirements are necessary to successfully check for existence of the application services database and automatically create the application services database:

    1. If the applications App_Data directory does not already exist, the web server account must have read and write access to the applications directory. This is necessary because the web server account will automatically create the App_Data directory if it does not already exist.
    2. If the applications App_Data directory already exists, the web server account only requires read and write access to the applications App_Data directory. This is necessary because the web server account will attempt to verify that the Sql Server Express database already exists within the applications App_Data directory. Revoking read access on the App_Data directory from the web server account will prevent the provider from correctly determining if the Sql Server Express database already exists. This will cause an error when the provider attempts to create a duplicate of an already existing database. Write access is required because the web server accounts credentials are used when creating the new database.
    3. Sql Server Express must be installed on the machine.
    4. The process identity for the web server account must have a local user profile. See the readme document for details on how to create a local user profile for both machine and domain accounts.
    There is no datbase under my App_Data directory in my project. Should there be??
    Any help would be greatly appreciated

    Thanks




    Chris
     
  2. Hi Chris,
    You can't use an Express DB here but you can attach it if you addSQL Server 2005 to your account.
    Note that option doesn't exist for SQL Server 2000.

    Look in the Database section and you can see some recent tips I've been posting to help with this.
    If I can be of any assistance please let me know.
    Salute,
    Mark
     

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