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Mastering ABP Framework, published by Packt

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When I run the ProductManagement.DbMigrator project, I got this big exception

Hello!

When I ran the ProductManagement.DbMigrator project, I got this big exception:

[12:02:10 INF] Started database migrations...
[12:02:10 INF] Migrating schema for host database...
[12:02:12 INF] Executing host database seed...
Unhandled exception. System.TypeInitializationException: The type initializer for 'Microsoft.EntityFrameworkCore.EnumerableMethods' threw an exception.
---> System.InvalidOperationException: Sequence contains more than one matching element
at System.Linq.ThrowHelper.ThrowMoreThanOneMatchException()
at System.Linq.Enumerable.TryGetSingle[TSource](IEnumerable1 source, Func2 predicate, Boolean& found)
at System.Linq.Enumerable.Single[TSource](IEnumerable1 source, Func2 predicate)
at Microsoft.EntityFrameworkCore.EnumerableMethods..cctor()
--- End of inner exception stack trace ---
at Microsoft.EntityFrameworkCore.EnumerableMethods.get_Contains()
at Microsoft.EntityFrameworkCore.SqlServer.Query.Internal.SqlServerByteArrayMethodTranslator.Translate(SqlExpression instance, MethodInfo method, IReadOnlyList1 arguments, IDiagnosticsLogger1 logger)
at Microsoft.EntityFrameworkCore.Query.RelationalMethodCallTranslatorProvider.<>c__DisplayClass4_0.b__3(IMethodCallTranslator t)
at System.Linq.Enumerable.SelectEnumerableIterator2.MoveNext() at System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable1 source, Func2 predicate, Boolean& found) at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable1 source, Func2 predicate) at Microsoft.EntityFrameworkCore.Query.RelationalMethodCallTranslatorProvider.Translate(IModel model, SqlExpression instance, MethodInfo method, IReadOnlyList1 arguments, IDiagnosticsLogger1 logger) at Microsoft.EntityFrameworkCore.Query.RelationalSqlTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression) at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor) at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node) at Microsoft.EntityFrameworkCore.Query.RelationalSqlTranslatingExpressionVisitor.TranslateInternal(Expression expression) at Microsoft.EntityFrameworkCore.Query.RelationalSqlTranslatingExpressionVisitor.Translate(Expression expression) at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.TranslateExpression(Expression expression) at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.TranslateLambdaExpression(ShapedQueryExpression shapedQueryExpression, LambdaExpression lambdaExpression) at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.TranslateWhere(ShapedQueryExpression source, LambdaExpression predicate) at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression) at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor) at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node) at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression) at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor) at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node) at Microsoft.EntityFrameworkCore.Query.QueryCompilationContext.CreateQueryExecutor[TResult](Expression query) at Microsoft.EntityFrameworkCore.Storage.Database.CompileQuery[TResult](Expression query, Boolean async) at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.CompileQueryCore[TResult](IDatabase database, Expression query, IModel model, Boolean async) at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass12_01.b__0()
at Microsoft.EntityFrameworkCore.Query.Internal.CompiledQueryCache.GetOrAddQuery[TResult](Object cacheKey, Func1 compiler) at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteAsync[TResult](Expression query, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.ExecuteAsync[TResult](Expression expression, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryable1.GetAsyncEnumerator(CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync[TSource](IQueryable1 source, CancellationToken cancellationToken) at Volo.Abp.Identity.EntityFrameworkCore.EfCoreIdentityUserRepository.GetRoleNamesAsync(Guid id, CancellationToken cancellationToken) at Castle.DynamicProxy.AsyncInterceptorBase.ProceedAsynchronous[TResult](IInvocation invocation, IInvocationProceedInfo proceedInfo) at Volo.Abp.Castle.DynamicProxy.CastleAbpMethodInvocationAdapterWithReturnValue1.ProceedAsync()
at Volo.Abp.Uow.UnitOfWorkInterceptor.InterceptAsync(IAbpMethodInvocation invocation)
at Volo.Abp.Castle.DynamicProxy.CastleAsyncAbpInterceptorAdapter1.InterceptAsync[TResult](IInvocation invocation, IInvocationProceedInfo proceedInfo, Func3 proceed)
at Volo.Abp.Identity.IdentityUserStore.GetRolesAsync(IdentityUser user, CancellationToken cancellationToken)
at Volo.Abp.Identity.IdentityUserStore.IsInRoleAsync(IdentityUser user, String normalizedRoleName, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Identity.UserManager1.AddToRoleAsync(TUser user, String role) at Castle.DynamicProxy.AsyncInterceptorBase.ProceedAsynchronous[TResult](IInvocation invocation, IInvocationProceedInfo proceedInfo) at Volo.Abp.Castle.DynamicProxy.CastleAbpMethodInvocationAdapterWithReturnValue1.ProceedAsync()
at Volo.Abp.Uow.UnitOfWorkInterceptor.InterceptAsync(IAbpMethodInvocation invocation)
at Volo.Abp.Castle.DynamicProxy.CastleAsyncAbpInterceptorAdapter1.InterceptAsync[TResult](IInvocation invocation, IInvocationProceedInfo proceedInfo, Func3 proceed)
at Volo.Abp.Identity.IdentityDataSeeder.SeedAsync(String adminEmail, String adminPassword, Nullable1 tenantId) at Castle.DynamicProxy.AsyncInterceptorBase.ProceedAsynchronous[TResult](IInvocation invocation, IInvocationProceedInfo proceedInfo) at Volo.Abp.Castle.DynamicProxy.CastleAbpMethodInvocationAdapterWithReturnValue1.ProceedAsync()
at Volo.Abp.Uow.UnitOfWorkInterceptor.InterceptAsync(IAbpMethodInvocation invocation)
at Volo.Abp.Castle.DynamicProxy.CastleAsyncAbpInterceptorAdapter1.InterceptAsync[TResult](IInvocation invocation, IInvocationProceedInfo proceedInfo, Func3 proceed)
at Volo.Abp.Data.DataSeeder.SeedAsync(DataSeedContext context)
at Castle.DynamicProxy.AsyncInterceptorBase.ProceedAsynchronous(IInvocation invocation, IInvocationProceedInfo proceedInfo)
at Volo.Abp.Castle.DynamicProxy.CastleAbpMethodInvocationAdapter.ProceedAsync()
at Volo.Abp.Uow.UnitOfWorkInterceptor.InterceptAsync(IAbpMethodInvocation invocation)
at Volo.Abp.Castle.DynamicProxy.CastleAsyncAbpInterceptorAdapter1.InterceptAsync(IInvocation invocation, IInvocationProceedInfo proceedInfo, Func3 proceed)
at ProductManagement.Data.ProductManagementDbMigrationService.SeedDataAsync(Tenant tenant) in C:\Users\jstnf\Downloads\ABPFramework\Samples\Chapter-03\ProductManagement-v4x\src\ProductManagement.Domain\Data\ProductManagementDbMigrationService.cs:line 108
at ProductManagement.Data.ProductManagementDbMigrationService.MigrateAsync() in C:\Users\jstnf\Downloads\ABPFramework\Samples\Chapter-03\ProductManagement-v4x\src\ProductManagement.Domain\Data\ProductManagementDbMigrationService.cs:line 58
at ProductManagement.DbMigrator.DbMigratorHostedService.StartAsync(CancellationToken cancellationToken) in C:\Users\jstnf\Downloads\ABPFramework\Samples\Chapter-03\ProductManagement-v4x\src\ProductManagement.DbMigrator\DbMigratorHostedService.cs:line 30
at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at ProductManagement.DbMigrator.Program.Main(String[] args) in C:\Users\jstnf\Downloads\ABPFramework\Samples\Chapter-03\ProductManagement-v4x\src\ProductManagement.DbMigrator\Program.cs:line 29
at ProductManagement.DbMigrator.Program.

(String[] args)

C:\Users\jstnf\Downloads\ABPFramework\Samples\Chapter-03\ProductManagement-v4x\src\ProductManagement.DbMigrator\bin\Debug\net6.0\ProductManagement.DbMigrator.exe (process 15384) exited with code -532462766.

The Categories and Products tables exist in the ProductManagement database.

Your prompt response with helping me out would be much appreciated.

Best Regards,

Justin

When I build the Product Managment app from scratch, it worked but the code here in Chap. 3 isn't working

Hello!

Could somebody respond to this issue please?

Best Regards,

Justin

Dotnet 5 is out of support and not installed by default, please upgrade dotnet version.

As title