[Source] Solution de contournement des exceptions de base du MySQL Entity Framework

System.TypeLoadException:“Method 'get_Info' in type 'Pomelo.EntityFrameworkCore.MySql.Infrastructure.Internal.MySqlOptionsExtension' from assembly 'Pomelo.EntityFrameworkCore.MySql, Version=2.2.6.0, Culture=neutral, PublicKeyToken=null' does not have an implementation.”

System.TypeLoadException:“Method 'get_Info' in type 'MySql.Data.EntityFrameworkCore.Infraestructure.MySQLOptionsExtension' from assembly 'MySql.Data.EntityFrameworkCore, Version=8.0.18.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' does not have an implementation.”

Autofac.Core.DependencyResolutionException: An exception was thrown while activating λ:Microsoft.EntityFrameworkCore.DbContextOptions[] -> λ:Microsoft.EntityFrameworkCore.DbContextOptions -> λ:Microsoft.EntityFrameworkCore.DbContextOptions`1[[itsvse.DomainModels.itsvseDb, itsvse.DomainModels, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].
---> System.TypeLoadException : Méthode 'get_Info' dans le type 'MySql.Data.EntityFrameworkCore.Infraestructure.MySQLOptionsExtension' à partir de l’assembleur 'MySql.Data.EntityFrameworkCore, Version=8.0.18.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' n’a pas d’implémentation.
   at Microsoft.EntityFrameworkCore.MySQLDbContextOptionsExtensions.UseMySQL
   à l’ITSVSE. WebUI.Démarrage. <ConfigureServices>b__4_0(DbContextOptionsBuilder opt) dans C :\Users\DELL\source\repos\itsvse\itsvse. WebUI\Startup.cs : ligne 39
   at Microsoft.Extensions.DependencyInjection.EntityFrameworkServiceCollectionExtensions.<>c__DisplayClass3_0'2. <AddDbContextPool>b__0(IServiceProvider _, DbContextOptionsBuilder ob)
   at Microsoft.Extensions.DependencyInjection.EntityFrameworkServiceCollectionExtensions.<>c__DisplayClass5_0'2. <AddDbContextPool>b__0(IServiceProvider sp, DbContextOptionsBuilder ob)
   at Microsoft.Extensions.DependencyInjection.EntityFrameworkServiceCollectionExtensions.DbContextOptionsFactory[TContext](IServiceProvider applicationServiceProvider, Action'2 optionsAction)
   sur Microsoft.Extensions.DependencyInjection.EntityFrameworkServiceCollectionExtensions.<>c__DisplayClass10_0'1. <AddCoreServices>b__0(IServiceProvider p)
   sur Autofac.Extensions.DependencyInjection.AutofacRegistration.<>c__DisplayClass3_0. <Register>b__0(IComponentContext context, paramètres IEnumerable'1)
   sur Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance(IComponentContext context, IEnumerable'1 parameters)
   sur Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable'1 parameters, Object& decoratorTarget)
   --- Fin de la trace de pile d’exception interne ---
   sur Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable'1 parameters, Object& decoratorTarget)
   sur Autofac.Core.Resolving.InstanceLookup.Execute()
   à Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable'1 parameters)
   sur Autofac.Core.Resolving.ResolveOperation.ResolveComponent(IComponentRegistration registration, IEnumerable'1 parameters)
   sur Autofac.Core.Resolving.ResolveOperation.Execute(IComponentRegistration registration, IEnumerable'1 parameters)
   à Autofac.Core.Lifetime.LifetimeScope.ResolveComponent(IComponentRegistration registration, IEnumerable'1 parameters)
   à Autofac.ResolutionExtensions.TryResolveService(IComponentContext context, Service Service, IEnumerable'1 parameters, Object& instance)
   à Autofac.ResolutionExtensions.ResolveService(IComponentContext context, Service Service, IEnumerable'1 paramètres)
   sur Autofac.ResolutionExtensions.Resolve(IComponentContext context, Type ServiceType, IEnumerable'1 parameters)
   à Autofac.ResolutionExtensions.Resolve(IComponentContext context, Type serviceType)
   at Autofac.Extensions.DependencyInjection.AutofacServiceProvider.GetRequiredService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetServices[T](IServiceProvider provider)
   sur Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.FindContextTypes()
   sur Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.FindContextType(Nom de la chaîne)
   sur Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(StringContextType)
   sur Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(Nom de chaîne, Fichier de sortie de chaîne, Type de contexte de chaîne)
   sur Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(Nom de chaîne, DireSortie de chaîne, Type de contextChaîne chaîne)
   sur Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigration.<>c__DisplayClass0_0. <.ctor>b__0()
   sur Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0'1. <Execute>b__0()
   à Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
Une exception a été lancée lors de l’activation de λ :Microsoft.EntityFrameworkCore.DbContextOptions[] -> λ :Microsoft.EntityFrameworkCore.DbContextOptions -> λ : Microsoft.EntityFrameworkCore.DbContextOptions'1[[itsvse. DomainModels.itsvseDb, itsvse. DomainModels, Version=1.0.0.0, Culture=neutre, PublicKeyToken=null]].