I made a ASP.NET Web Api. I have my connection string inside web.config and it looks like this:
<add name="AuthContext" connectionString="Data Source=*****; Initial Catalog=*****;Uid=*****;Pwd=****;SslMode=None;" providerName="MySql.Data.MySqlClient" />
This database is also on external server and can be reached from anywhere.
On my local machine everythings works completely fine, but when i publish it to exteral IIS server i get that error:
"The ADO.NET provider with invariant name 'MySql.Data.MySqlClient' is either not registered in the machine or application config file, or could not be loaded. See the inner exception for details.",
and also this:
"InnerException": {
"Message": "An error has occurred.",
"ExceptionMessage": "Unable to find the requested .Net Framework Data Provider. It may not be installed.",
"ExceptionType": "System.ArgumentException",
"StackTrace": " at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName)\r\n at System.Data.Entity.Infrastructure.DependencyResolution.DefaultProviderFactoryResolver.GetService(Type type, Object key, Func`3 handleFailedLookup)"
}
I would like to know why during connecting to dabase with for example ADO.NET i have to use
SslMode=None
In other case i get that error:
it means handshake failed, unexpected package format
Also i get another error in another controller and also only in IIS:
Alright, so in my web.config i added:
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient" />
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL"
type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=8.0.13.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
and than everything worked fine
I know there are similar questions that have been asked, but most are related to Entity Framework or have been left unanswered. So please do not mark as Duplicate just by the title.
I have an issue with a VB.NET application, following an upgrade of the users machine (to Windows8 64-bit OS).
In fact, when I open the source code to rebuild the application, I get the Error 175 coming from the edmx file:
The ADO.NET provider with invariant name 'MySql.Data.MySqlClient' is
either not registered in the machine or application config file, or
could not be loaded.
I checked a bit online but almost all the answers refers to Entity Framework.
MySQL Connector 6.1.6 has been installed and the corresponding reference MySQL.data has been added, yet I cannot clear the error.
Error goes from this line of my edmx file, when the Provider is called;
<edmx:StorageModels>
<Schema Namespace="tci_db_01Model.Store" Alias="Self" Provider="MySql.Data.MySqlClient" ProviderManifestToken="5.1" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2006/04/edm/ssdl">
<EntityContainer Name="db_01ModelStoreContainer">
<EntitySet Name="tb0001_nitg" EntityType="db_01Model.Store.tb0001_nitg" store:Type="Tables" Schema="db_02" />
ConnectionString in the app.config file is as follows;
</connectionStrings>
<system.data>
<DbProviderFactories>
<clear />
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.6.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
Has anyone ever encountered this issue? How do I clear the error?
I'm trying to use Entity Framework with MySQL and I get the above error. I have the latest MySQL connector installed.
The full error reads:
No Entity Framework provider found for 'MySql.Data.MySqlClient' ADO.NET provider. Make sure the provider is registered in the 'entityFramework' section of the application config file.
However, I can't find anything that suggests just how you register it in the 'entityFramework' section.
Some other posts (example) suggest adding the provider to the system.Data DbProviderFactories section like this:
<DbProviderFactories>
<add
name="MySQL Data Provider"
invariant="MySql.Data.MySqlClient"
description=".Net Framework Data Provider for MySQL"
type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data,
Version=6.2.3.0, Culture=neutral,
PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
But that doesn't work because it claims that the invariant name is duplicated. And, if I actually iterate through the System.Data.Common.DbProviderFactories I can see the last one is the MySQL provider:
MySQL Data Provider
.Net Framework Data Provider for MySQL
MySql.Data.MySqlClient
MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.6.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d
So the provider is there, but EF refuses to use it. Any ideas?
My full config looks like this:
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<system.data>
<!--<DbProviderFactories>
<add
name="MySQL Data Provider"
invariant="MySql.Data.MySqlClient"
description=".Net Framework Data Provider for MySQL"
type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data,
Version=6.2.3.0, Culture=neutral,
PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>-->
</system.data>
<connectionStrings>
<add name="myContext" connectionString="server=****;User Id=****;password=****;Persist Security Info=True;database=myDb"
providerName="MySql.Data.MySqlClient" />
</connectionStrings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
</entityFramework>
</configuration>
in EF5 or less, all ok.
in EF6, you need to use mysql connector 6.8.x, and add DbConfigurationTypeAttribute to you DbContext:
[DbConfigurationType(typeof(MySql.Data.Entity.MySqlEFConfiguration))]
public class DemoContext : DbContext{}
which MySqlEFConfiguration is in MySql.Data.Entity.EF6.dll in 6.8.x. Have a try!
You need to create this section in config (EF 5):
<entityFramework>
<!-- ... -->
<providers>
<provider invariantName="MySql.Data.MySqlClient"
type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity" />
</providers>
</entityFramework>
Update: Use this definition for EF 6:
<entityFramework>
<!-- ... -->
<providers>
<provider invariantName="MySql.Data.MySqlClient"
type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
</providers>
</entityFramework>
Thanks to elcool.
I just had the same situation when trying to configure Visual Studio Professional 2017 environment with MySQL, ADO.NET (Database First) and EF6.
After going through hell with every connector/NET available, I got it to work with Connector/NET v6.9.10 and following the steps below.
Uninstall/remove "Connector/NET" and "MySQL for Visual Studio" if installed.
Install "MySQL for Visual Studio" v2.0.5 CTP (MySQL for Visual Studio).
Note: Install MySQL for Visual Studio before Connector/NET.
Install "Connector/NET" v6.9.10 (Connector/Net).
https://i.stack.imgur.com/XOT1I.jpg Note: I tried using Connector/NET v6.8, v6.10 and v8 first, but none of them worked Here you can find all Connector Versions and Compatibilities with Visual Studio IDEs, but so far this list is inaccurate.
Download and Install "EntityFramework" v6.2.0 through NuGet.
Add references to C:\Program Files (x86)\MySQL\Connector.NET 6.9.10\Assemblies\v4.5\MySql.Data.dll
and
C:\Program Files (x86)\MySQL\Connector.NET 6.9.10\Assemblies\v4.5\MySql.Data.Entity.EF6.dll.
Add MySQL EF6 provider info inside App.config under entity framework providers as follow:
<entityFramework>
<providers>
<provider invariantName="MySql.Data.MySqlClient"
type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
</providers>
</entityFramework>
Rebuild project.
And that was it. VS2017 was ready to go for me. Hope this works for everybody, as it did for me today.
References:
Can't Create Entity Data Model - using MySql and EF6
No Entity Framework provider found for 'MySql.Data.MySqlClient' ADO.NET provider
Just adding a summary of versions (since I saw you are trying 6.2 which is way too old)
For EF4, use Connector/NET 6.6.x (current GA is 6.6.6)
For EF5, use Connector/NET 6.7.x (current GA is 6.7.4) or Connector/NET 6.8.x (current GA is 6.8.3).
For EF6, use Connector/NET 6.8.x (current GA is 6.8.3).
I've updated from EntityFramework 5.0 to 6.1 and MySQL connector 6.8.3 and only had to add the attribute to get things going again. Before adding the attribute everything would compile fine but crash at runtime.
[DbConfigurationType(typeof(MySql.Data.Entity.MySqlEFConfiguration))]
public class DemoContext : DbContext{}
I tried every different combination of config string and setup but I finally figured it out. My solution has the source code in one project and tests in another. I was using Entity Framework 6.1.1 and had installed MySql Connector 6.8.3 and MySql for Visual Studio 1.2.3.
The problem was that I had NuGet managing the packages, but only had them included in the main project. The solution was to
Right click on the Solution (top level in the solution explorer)
Manage Nuget packages for solution
Go to Installed tab
For all of the EntityFramework related packages (MySql.Data, MySql.Data.Entities, MySql.ConnectorNET.Entity and MySql.ConnectorNET.Data), select them then select the "Manage" button.
Enable each package for all projects.
For future reference, here's the official guide on using MySQL Connector/Net with EF 6 which includes all the necessary steps (assemblies, configs, ...etc.):
Chapter 10 EF 6 Support
Install latest version from nuget
https://www.nuget.org/packages/MySql.Data.Entity/
In my case, it was a missing reference. When you upgrade to EntityFramework 6, you need to add a reference to the assembly
System.Data.Entity
I think it's because MySql.Data.Entity.EF6 inherits from a bunch of stuff in this assembly, that it did not for previous version of EF.
When your app.config is good and all your references seem fine, it's a solution worth checking.
Nevermind. I noticed that I had EF 6 installed. I removed it and tried EF 5 instead (which NuGet says is the latest stable version) and it started working.
Still, a more useful error message would have been nice!
May just MySql provider is installed in machine-config (e. g. by .net connector installer?
Also the default connection factory should be something like "MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.7.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" i guess...
I get the following error when running my MVC asp.net (.net 4.0) website on my hosting provider's server:
Attempt by method 'MySql.Data.MySqlClient.MySqlClientFactory.System.IServiceProvider.GetService(System.Type)' to access field 'MySql.Data.MySqlClient.MySqlProviderServices.Instance' failed.
The following should be known about this application:
It uses the entity framework. The hosting provider put a test .aspx
page on my website which does not use the entity framework which can
connect to the database.
The website works on my localhost, except
when I use their trust policy config file. In which case I get the
same error.
It worked before they did some updates, which included adding the SecurityClass MySqlClientPermission
I have searched for solutions, but found only answers to other problems with mysql connector. To show that these are not the issue I include those here:
This in included in the web.config:
<DbProviderFactories>
<clear />
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.5.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /> </DbProviderFactories>
They did include this in the trust config:
<SecurityClass Name="MySqlClientPermission" Description="MySql.Data.MySqlClient.MySqlClientPermission, MySql.Data, Version=6.5.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
<IPermission class="MySqlClientPermission" version="1"> <add connectionString="Server=;Database=;User=;Password=;Port=;Pooling=;" restrictions="" KeyRestrictionBehavior="PreventUsage" />
</IPermission>
Perhaps someone can point me in the right direction, because after trying a lot of things I am at a loss.
I am trying to get MVC 3 Application to use a MySql database, but I keep getting errors, I have made the following connectionstring and provider in my Web.Config file
<connectionStrings>
<add name="DefaultConnection" connectionString="server=xxxxx.unoeuro.com; userid=xxxxx_dk;password=xxxxx;pooling=yes;Database=xxxxx_dk_db" providerName="MySql_db"/>
</connectionStrings>
<system.data>
<DbProviderFactories>
<add name="MySql_db" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=5.1.54.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"/>
</DbProviderFactories>
</system.data>
But when I try to use it (Just trying to use the default register user that is in a default project) I get this error
An error occurred creating the configuration section handler for
system.data: Column 'InvariantName' is constrained to be unique.
Value 'MySql.Data.MySqlClient' is already present.
But I if I remove the DbProviderFactories I just get an error that there is missing a data provider, so its not becuase I duplicated it anywhere
Building upon #Ladislav Mrnka's answer, the error is probably occurring because the setting in Web.config is conflicting with one in machine.config. To eliminate the error, add a "remove" tag to your Web.config as follows.
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient"/>
<add name="MySql_db" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=5.1.54.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"/>
</DbProviderFactories>
</system.data>
Provider name in connection string must be set to invariant name of provider factory. Also the error most probably says that you already have MySql.Data.MySqlClient installed on your machine and registered in Machine.config.
Install the latest version of MySQL for visual studio and find a compatible version for Connector/NET.
For example, I have used MySQL for Visual Studio 1.2.7. and Connector/NET 6.7.5, 6.8.3 or 6.9.x. for Visual Studio 2013
uninstall all the other versions of MySQL for visual studio and Connector/NET.
After that Add new item-> ADO.Net Entity Data Model and create the edmx file.
you can see system.data and system.data.entity in your reference folder of the project.
In your code
MyDatabaseEntities myDB = new MyDatabaseEntities();
use myDB to access your data.
If you are creating a framework project, copy everything under tag from app.config and paste it into your main project's(startup project) web.config file
One thing needs to keep in mind that this tag should be the first child of tag.