I'm new with .net
I'm trying building console app with EF6 and MySql
i always got this error when running it
this is my app.conf
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<connectionStrings>
<add name="MyContext" providerName="MySql.Data.MySqlClient"
connectionString="server=192.168.1.212;port=3306;database=zkatt;uid=fanta;password=040506"/>
</connectionStrings>
<entityFramework codeConfigurationType="MySql.Data.Entity.MySqlEFConfiguration, MySql.Data.Entity.EF6">
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="MySql.Data.MySqlClient"
type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6"/>
<provider invariantName="System.Data.SqlClient"
type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
</providers>
</entityFramework>
<system.data>
<DbProviderFactories>
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description="MySQL Database Provider" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" />
</DbProviderFactories>
</system.data>
</configuration>
my context class
[DbConfigurationType(typeof(MySqlEFConfiguration))]
public partial class Entities : DbContext
{
public Entities()
: base("name=MyContext")
{
}
anything i miss?
*edit
this is full report error
Remove the useless node :
<DbProviderFactories>
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description="MySQL Database Provider" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" />
</DbProviderFactories>
And specify version of your MySqlClient provider like :
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.10.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
Downgrade mysql entity to 6.9.10, now its work, wasted my 6 hours.
Related
I have deployed my .Net 4.5.2 project. But when I run it I get the following error:
"An error occurred accessing the database. This usually means that the connection to the database failed. Check that the connection string is correct and that the appropriate DbContext constructor is being used to specify it or find it in the application's config file.
My config file :
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<connectionStrings>
<add name="main" connectionString="server=localhost;port=3306;database=test;uid=root;password=test;charset=utf8" providerName="MySql.Data.MySqlClient" />
</connectionStrings>
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient"></remove>
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.6.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
<entityFramework>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.18.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
</provider></providers>
</entityFramework>
</configuration>
Production Mysql version: 8.0.30
I am trying to create an entityframework 6 model with a mysql database.
I am using the latest mysql server install and have added the Mysql.Data.Entity (24/02/2015) package to the project with nuget manager.
However when I go through the wizard (picking database first), I can connect to the database on the connection page but when I click next I first get a page stating that "an entity framework database provider compatible with this version could not be found for your data connection......"
If I then try to run the wizard again and click next on the connection page the wizard just disappears......
how do I get it to connect? I have always been able to do this without issue so I am baffled as to what is going on......
My App.Config is as follows
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --></configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.9.6.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
</provider></providers>
</entityFramework>
<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=6.9.6.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data></configuration>
I am getting "Specified key was too long; max key length is 1000 bytes" on my server. I have the following (if i miss off a tag its just poor copy and paste.
<configuration>
<configSections>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=xxxxx" requirePermission="false" />
</configSections>
<connectionStrings>
<add name="ArticleContext" providerName="MySql.Data.MySqlClient" connectionString="server=xxxxxxxx; Port=xxxx; database=xxxxxx; User Id=xxxxxx; Pwd=xxxxx" />
</connectionStrings>
<system.web>
<httpRuntime targetFramework="4.5" />
</system.web>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
and further down
<entityFramework>
<contexts>
<context type="EverythingASP.DAL.ArticleContext, EverythingASP">
<databaseInitializer type="EverythingASP.DAL.Initializer, EverythingASP" />
</context>
</contexts>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.9.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
</provider>
</providers>
</entityFramework>
<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=6.9.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
Any ideas what to look for? I dont even know what key it's referring to. When googling the only answers were with regards to migrations, and I don't have any in this as far as I'm aware.
Update #1
All entities have Ids assigned automatically by EF when they are created. This error is persisting on startup! The ids are all defined for the entities I have as:
[Key]
public int Id { get; set; }
So at run-time the max key value is 28...
Is this an issue with EF6 and mysql ?
The answer was to change the storage engine from myisam to innodb. This can be done in script, or if you are using godaddy, go on each of the tables and theres a button in the columns. dont ring support, they dont even know what it is.
I am using Visual Studio 2013 to develop a web forms application. I selected Authentication: Individual user accounts. I want the application including ASP Identity to use MySQL.
I added references to MySql.Data, MySql.Data.Entity.EF6, MySql.Web and have made the following changes to Web.config:
<connectionStrings>
<add name="EkoPayMaster.Properties.Settings.EkoPayMasterConnectionString" connectionString="server=localhost;user id=root;persistsecurityinfo=True;database=paymaster" />
</connectionStrings>
<membership defaultProvider="MySqlMembershipProvider">
<providers>
<clear />
<add name="MySqlMembershipProvider" type="MySql.Web.Security.MySQLMembershipProvider, MySql.Web" connectionStringName="EkoPayMasterConnectionString" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="true" passwordFormat="Hashed" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" autogenerateschema="true" />
</providers>
</membership>
<profile>
<providers>
<clear />
<add type="MySql.Web.Security.MySqlProfileProvider, MySql.Web" name="MySqlProfileProvider" applicationName="/" connectionStringName="EkoPayMasterConnectionString" autogenerateschema="true" />
</providers>
</profile>
<roleManager enabled="true" defaultProvider="MySqlRoleProvider">
<providers>
<clear />
<add connectionStringName="EkoPayMasterConnectionString" applicationName="/" name="MySqlRoleProvider" type="MySql.Web.Security.MySQLRoleProvider, MySql.Web" autogenerateschema="true" />
</providers>
</roleManager>
<entityFramework>
<providers>
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
</providers>
</entityFramework>
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient"></remove>
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.8.3.0" />
</DbProviderFactories>
</system.data>
When I run the application, I am able to register a user and log in. However, ASP Identity does not create the necessary user tables is the MySql database.
What do I need to do to have the application add the tables/user information into MySql?
First of all, as I know, you must use exactly the same connection string name you gave in connectionStrings/add name in all your providers' connectionStringName attributes.
I am getting the following error
"The Entity Framework provider type 'MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity' registered in the application config file for the ADO.NET provider with invariant name 'MySql.Data.MySqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information."
However I do have MySql.Data.dll and MySql.Data.Entity.dll and also MySql.Data.Entity.EF6.dll referenced in my project (comes from MySQL Connector Net 6.8.3)
Here is my App.conf
<?xml version="1.0" encoding="utf-8"?>
<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>
<connectionStrings>
<add name="inspectm_inspectContext" connectionString="server=--user id=--;password=--;database=--;persistsecurityinfo=True" providerName="MySql.Data.MySqlClient" />
</connectionStrings>
<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=6.7.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
<entityFramework>
<defaultConnectionFactory type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" />
<providers>
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity" />
</providers>
</entityFramework>
</configuration>
<?xml version="1.0" encoding="utf-8"?>
<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>
<connectionStrings>
<add name="inspectm_inspectContext" connectionString="server=--;user id=--;password=--;database=--;persistsecurityinfo=True" providerName="MySql.Data.MySqlClient" />
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.8.3.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
</providers>
</entityFramework>
</configuration>
My Complete App.conf this worked for me
First I removed
<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=6.7.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
Then I changed
<defaultConnectionFactory type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" />
And Added the provider
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.8.3.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
for anyone facing the same problem, here is the line that causes the Exception is this
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity" />
Just append .EF6 to MySql.Data.Entity such that the provider is like this
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6" />
As such your choice to remove the code within didn't help solve the problem. I hope this helps someone.
Check for an inner exception.
I get
{"Inheritance security rules violated by type:
'MySql.Data.Entity.MySqlEFConfiguration'. Derived types must either
match the security accessibility of the base type or be less
accessible.":"MySql.Data.Entity.MySqlEFConfiguration"}
That points me to:
Inheritance security rules violated by type: 'MySql.Data.Entity.MySqlEFConfiguration'
I dont really like to downgrade. But so far i haven't found a better answer.
You could also do this:
[DbConfigurationType(typeof(MySql.Data.Entity.MySqlEFConfiguration))]
public class DemoContext : DbContext{}
{