A provider can be configured by overriding the 'MasaDbContext.OnConfiguring' method or by using 'AddMasaDbContext' on the application service provider.

[liu9jian0she]

Description

Masa.Contrib.Dispatcher.IntegrationEvents.Processor.InfiniteLoopProcessor[0] Processor 'Masa.Contrib.Dispatcher.IntegrationEvents.Processor.DeletePublishedExpireEventProcessor' failed System.InvalidOperationException: No database provider has been configured for this DbContext. A provider can be configured by overriding the 'MasaDbContext.OnConfiguring' method or by using 'AddMasaDbContext' on the application service provider. If 'AddMasaDbContext' is used, then also ensure that your DbContext type accepts a 'MasaDbContextOptions' object in its constructor and passes it to the base constructor for DbContext. ---> System.InvalidOperationException: No database provider has been configured for this DbContext. A provider can be configured by overriding the 'DbContext.OnConfiguring' method or by using 'AddDbContext' on the application service provider. If 'AddDbContext' is used, then also ensure that your DbContext type accepts a DbContextOptions object in its constructor and passes it to the base constructor for DbContext. at Microsoft.EntityFrameworkCore.Internal.DbContextServices.Initialize(IServiceProvider scopedProvider, DbContextOptions contextOptions, DbContext context) at Microsoft.EntityFrameworkCore.DbContext.get_ContextServices() at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider() at Microsoft.EntityFrameworkCore.DbContext.get_ChangeTracker() at Microsoft.EntityFrameworkCore.DefaultMasaDbContext.TryInitializeMasaDbContextOptions(MasaDbContextOptions options) --- End of inner exception stack trace --- at Microsoft.EntityFrameworkCore.DefaultMasaDbContext.TryInitializeMasaDbContextOptions(MasaDbContextOptions options) at Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.<>c2`1.b2_1(IServiceProvider serviceProvider) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite callSite, RuntimeResolverContext context) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>cDisplayClass2_0.b0(ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier serviceIdentifier, ServiceProviderEngineScope serviceProviderEngineScope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) at Masa.BuildingBlocks.Dispatcher.IntegrationEvents.IntegrationEventOptionsExtensions.<>c01.<UseEventLog>b__0_3(IServiceProvider serviceProvider) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite callSite, RuntimeResolverContext context) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>cDisplayClass2_0.b0(ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier serviceIdentifier, ServiceProviderEngineScope serviceProviderEngineScope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) at Masa.BuildingBlocks.Dispatcher.IntegrationEvents.IntegrationEventOptionsExtensions.<>c01.<UseEventLog>b__0_2(IServiceProvider serviceProvider) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSiteMain(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite callSite, RuntimeResolverContext context, ServiceProviderEngineScope serviceProviderEngine, RuntimeResolverLock lockType) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite callSite, RuntimeResolverContext context) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass2_0.b__0(ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier serviceIdentifier, ServiceProviderEngineScope serviceProviderEngineScope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) at Masa.Contrib.Dispatcher.IntegrationEvents.Processor.DeletePublishedExpireEventProcessor.ExecuteAsync(IServiceProvider serviceProvider, CancellationToken stoppingToken) at Masa.Contrib.Dispatcher.IntegrationEvents.Processor.ProcessorBase.ExecuteAsync(CancellationToken stoppingToken) at Masa.Contrib.Dispatcher.IntegrationEvents.Processor.ProcessorBase.ExecuteAsync(CancellationToken stoppingToken) at Masa.Contrib.Dispatcher.IntegrationEvents.Processor.InfiniteLoopProcessor.ExecuteAsync(CancellationToken stoppingToken)

Template Name

masablazor-server

.NET version

6

Template version

1.1.2

[capdiem]

masablazor-server 模板本身不提供 dbcontext 相关的功能。从你的错误信息来看，是因为没有为 DbContext 配置数据库提供程序。