I want to enable migration, but I get this error:
An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct.
Related
I create a EF code first database identity system with custom roles. When i register a user i put him in a role, and in the database i can see that works on the AspNetUserRoles table.
But when i try to check the user role using User.IsInRole("admin") i.e, it always return false( i tried with low, upper, all the way case).
I need to put something in the webconfig? Or what im missing here? Its my first time developing with this new Identity system and i think that is a bit confuse.
In my immediate window:
User.Identity.Name
"teste06"
User.Identity.IsAuthenticated
true
User.IsInRole("admin")
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
Exception:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
It seems that the role Manager Is Activated
and it is trying to create an SQL Express Database
to validate roles, i 've had the same issue i solve it by adding this code to my
web.config file
<system.webServer>
<modules>
<remove name="RoleManager" />
</modules>
</system.webServer>
You have to make sure you have this in your startup class
app.UseSignInCookies();
Also, I'm guessing your DbContext class is derived from IdentityDbContext<ApplicationUser>or IdentityDbContext.
If not, make sure you do.
Look this article for reference.
Similar post relating to your problem can be found here
I have a simple mvc web site (using the VS internet template) on azurewebsites talking to a SQL Azure database in the same data center. The database at this time is just to do the built-in SimpleMembership Provider. I have already switched from the default App_Data mdf file to Azure SQL. It works fine, but sometimes after a while, it would give:
A network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections. (provider: SQL
Network Interfaces, error: 26 - Error Locating Server/Instance
Specified)
with a long message:
SQLExpress database file auto-creation error:
The connection string specifies a local Sql Server Express instance
using a database location within the application's 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:
But I do not have a connection string using SQL Server Express!
Restarting the web site immediately does not remove the error.
Without changing anything and restarting the web site 15 minutes later give:
502 - Web server received an invalid response while acting as a
gateway or proxy server.
There is a problem with the page you are looking for, and it cannot be
displayed. When the Web server (while acting as a gateway or proxy)
contacted the upstream content server, it received an invalid response
from the content server.
Previously, I could restore the website back to working order by just re-publshing from VS. But for the last hour I have tried and tried and I cannot get the web site to work again.
What is the problem about SQL Server Express really about?
My connection string section contains:
<connectionStrings>
<add name="DefaultConnection" connectionString="Server=tcp:sabl6h4---.database.windows.net,1433;Database=MVC;User ID=test#sabl6h4---;Password=----;Trusted_Connection=False;Encrypt=True;Connection Timeout=30;" providerName="System.Data.SqlClient" />
<add name="Entities" connectionString="metadata=res://*/Data.Model1.csdl|res://*/Data.Model1.ssdl|res://*/Data.Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=sabl6h4---.database.windows.net;initial catalog=MVC;user id=test;password=----;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
Just to be sure, I copied and pasted sabl6h4---.database.windows.net into SSMS and connected using login test and it opened the database without problem.
One day later: I created a new azurewebsite and published the exact same project and same web.config. It works fine without problems. After some minutes, the exact same error occurred!
Three more hours later: Went for lunch, came back, hit the browser Refresh button, and the web site is up again. I am convinced that someone is fooling around with the settings at the back end.
Add a <clear/> element as the first element under the connectionstrings element to ensure no strings are being inherited. Also, I assume your Azure SQL DB is set up with proper firewall settings allowing your IP where the ASP.net code is deployed?
I also had this error. But in my case I did not notice that the connection string was being overwritten by the publish wizard. I fixed the problem by going to the Settings tab in the Publish wizard and unchecking "Use this connection string at runtime (update destination web.config)"
I have set up a remote server running SQl Server Web edition and full IIS 7.5. I am able to deploy my MVC 4 application to the remote box without issue, but when I try to run the website I receive the following error:
Login failed for user 'IIS APPPOOL\backoffice.mysite.com'.
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.
Exception Details: System.Data.SqlClient.SqlException: Login failed for user 'IIS APPPOOL\backoffice.mysite.com'.
The Error Console says:
Exception information:
Exception type: InvalidOperationException
Exception message: The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588
at MyModels.Filters.InitializeSimpleMembershipAttribute.SimpleMembershipInitializer..ctor() in c:\Users\Administrator\Documents\MySite\MyModels\Filters\InitializeSimpleMembershipAttribute.cs:line 47
An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct.
It is very possible that my connection string is incorrect as the error log suggests. My connection running locally in Visual Studio is:
<add name="MyDB" connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=MyDB;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\MyDB.mdf" providerName="System.Data.SqlClient" />
I have set up a transformation for the connection on the remote server as:
<add name="MyDB" connectionString="Data Source=(local);Initial Catalog=MyDb;Integrated Security=True" providerName="System.Data.SqlClient" />
Normally I use SQL login so I am confused here. What should the connection string look for SQL Server Web Edition using Windows Authentication?
It looks like the IIS APPPOOL\backoffice.mysite.com is the trying to create the DB. Is this correct? If so do I not need to create a login and user for this user in SQL Management Studio?
Do I need to create the DB in SQL Management Studio before running the deployment?
Thank so much!
you are running using Windows Authentintication for SQL Server. The IIS App is running under the user context of 'IIS APPPOOL\backoffice.mysite.com'; I would strongly suggest using either standard sql server credentials or creating a new user for that particular website that has sql credentials, probably better with regular credentials though. Integrated Security=SSPI in the connection string means Windows Authentication. So just use standard SQL Server credentials and set your database to mixed mode auth and set the User ID and Password in your connection string and then you will be up and running no problem.
Have just started converting an existing job tracking system into an ASP.NET MVC application. I'm failing miserably at getting this thing off the ground. I'm getting this error
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible.
With the following connection string
<add name="ApplicationServices"
connectionString="User ID=sysdba;Password=masterkey;Database=localhost:C:\\USINGFIREBIRD.FDB;"
providerName="FirebirdSql.Data.FirebirdClient" />
FirebirdClient has been added to windir\assembly using gcutil
This is probably a very dumb question, but does USINGFIREBIRD.FDB have to exist? Or will it be automatically created? Regardless, with the file created it does not work.
Edit:
Ok so in the end I was having so much trouble that I decided to start fresh.
First thing I discovered was that the .NET 4 assembly cache has moved to windows\Microsoft.NET\assembly. I saw that FirebirdClient was not in here so I had to figure out how to get it in there. I used Visual studio 2010 command prompt to add the assembly with GCUTIL.
Then I followed the information here
Then create a new asp.net mvc project, register your database in the server explorer, then add add an ado.net model class and have it auto generated from your database.
I'm writing this rather hastily as I'm about to leave work, hope it helps someone.
The file must exist and it must be a proper Firebird database, ie you can't just create an empty file named "USINGFIREBIRD.FDB". To create an Firebird database you can use the isql command line tool installed with Firebird.
BTW the error message says The server was not found or was not accessible - are you sure the Firebird service is running?
Your connection string part "Database=localhost:C:\\USINGFIREBIRD.FDB;" is wrong. If you database is a file you don't need the "localhost" just the db file path.
Here you can see valid connection strings for Firebird.
I've deployed a MVC site and it's database to a web hosting provider. The default ASPNET tables and the applications custom ones share the same database. There are two connection strings in the web config, one for ApplicationServices and one for my LINQ to SQL dbml. As they share the same database then I use a identical connection string for both.
The application services functions seem to work as I can log into the site. However the return controller throws an exception because it's trying to use my data context this time. Identical connection string and yet it gives me the error:
A network-related or instance-specific
error occurred while establishing a
connection to SQL Server. The server
was not found or was not accessible.
Verify that the instance name is
correct and that SQL Server is
configured to allow remote
connections. (provider: Named Pipes
Provider, error: 40 - Could not open a
connection to SQL Server)
This of course all works properly on my local machine. I would very much appriciate any suggestions as to why LINQ to SQL can't connect with a valid connection string.
The LINQ to SQL dbml file is inside a class library and the startup ASP.NET web project consumes this library as it's data layer. LINQ to SQL was reading it's connection string from the app.config of the class library when run through visual studio. When publishing the web project the dependent data library gets included but not it's app.config. I understand now that the fully qualified connection strings need to be manually copied into the web.config of the primary project where they override the defaults for the assembly. The problem I was facing was that with the absence of an app.config and no connection strings in the web.config, at least not fully qualified ones, the library was falling back to it's development defaults.