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Reversing a postgres database using EF Core 6 fails
See original GitHub issueDescribe what is not working as expected.
Steps to reproduce
When I try to Reverse a postgres database using EF Core 6 it fails with the following error
System.Exception: Reverse engineer error:
System.ArgumentNullException: Value cannot be null. (Parameter 'property')
at string Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetColumnName(IReadOnlyProperty property, in StoreObjectIdentifier storeObject)
at string Npgsql.EntityFrameworkCore.PostgreSQL.Metadata.Internal.NpgsqlAnnotationProvider+<>c__DisplayClass3_0.<For>b__0(?)+(string p) => { }
at TResult[] System.Linq.Enumerable+SelectArrayIterator<TSource, TResult>.ToArray()
at TSource[] System.Linq.Enumerable.ToArray<TSource>(IEnumerable<TSource> source)
at IEnumerable<IAnnotation> Npgsql.EntityFrameworkCore.PostgreSQL.Metadata.Internal.NpgsqlAnnotationProvider.For(ITableIndex index, bool designTime)+MoveNext()
at void Microsoft.EntityFrameworkCore.Infrastructure.AnnotatableBase.AddAnnotations(AnnotatableBase annotatable, IEnumerable<IAnnotation> annotations) x 2
at IRelationalModel Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Create(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider, bool designTime)
at IModel Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Add(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider, bool designTime)
at void Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelRuntimeInitializer.InitializeModel(IModel model, bool designTime, bool prevalidation)
at IModel Microsoft.EntityFrameworkCore.Infrastructure.ModelRuntimeInitializer.Initialize(IModel model, bool designTime, IDiagnosticsLogger<Validation> validationLogger)
at IModel Microsoft.EntityFrameworkCore.Scaffolding.Internal.RelationalScaffoldingModelFactory.Create(DatabaseModel databaseModel, ModelReverseEngineerOptions options)
at ScaffoldedModel RevEng.Core.ReverseEngineerScaffolder.ScaffoldModel(string connectionString, DatabaseModelFactoryOptions databaseOptions, ModelReverseEngineerOptions modelOptions, ModelCodeGenerationOptions codeOptions, bool removeNullableBoolDefaults, bool excludeNavigations, bool dbContextOnly, bool entitiesOnly, bool useSchemaFolders, ServiceProvider serviceProvider) in C:/Code/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerScaffolder.cs:line 216
at SavedModelFiles RevEng.Core.ReverseEngineerScaffolder.GenerateDbContext(ReverseEngineerCommandOptions options, ServiceProvider serviceProvider, List<string> schemas, string outputContextDir, string modelNamespace, string contextNamespace) in C:/Code/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerScaffolder.cs:line 62
at ReverseEngineerResult RevEng.Core.ReverseEngineerRunner.GenerateFiles(ReverseEngineerCommandOptions options) in C:/Code/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerRunner.cs:line 93
at int efreveng.Program.Main(string[] args) in C:/Code/EFCorePowerTools/src/GUI/efreveng/Program.cs:line 58
at ReverseEngineerResult EFCorePowerTools.Handlers.ReverseEngineer.ResultDeserializer.BuildResult(string output)
at async Task<ReverseEngineerResult> EFCorePowerTools.Handlers.ReverseEngineer.EfRevEngLauncher.GetOutputAsync()
at async Task<ReverseEngineerResult> EFCorePowerTools.Handlers.ReverseEngineer.EfRevEngLauncher.LaunchExternalRunnerAsync(ReverseEngineerOptions options, CodeGenerationMode codeGenerationMode)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.ReverseEngineerHandler.GenerateFilesAsync(Project project, ReverseEngineerOptions options, Tuple<bool, string> containsEfCoreReference)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.ReverseEngineerHandler.ReverseEngineerCodeFirstAsync(Project project, string optionsPath, bool onlyGenerate)
System.Exception: Reverse engineer error:
System.ArgumentNullException: Value cannot be null. (Parameter 'property')
at string Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetColumnName(IReadOnlyProperty property, in StoreObjectIdentifier storeObject)
at string Npgsql.EntityFrameworkCore.PostgreSQL.Metadata.Internal.NpgsqlAnnotationProvider+<>c__DisplayClass3_0.<For>b__0(?)+(string p) => { }
at TResult[] System.Linq.Enumerable+SelectArrayIterator<TSource, TResult>.ToArray()
at TSource[] System.Linq.Enumerable.ToArray<TSource>(IEnumerable<TSource> source)
at IEnumerable<IAnnotation> Npgsql.EntityFrameworkCore.PostgreSQL.Metadata.Internal.NpgsqlAnnotationProvider.For(ITableIndex index, bool designTime)+MoveNext()
at void Microsoft.EntityFrameworkCore.Infrastructure.AnnotatableBase.AddAnnotations(AnnotatableBase annotatable, IEnumerable<IAnnotation> annotations) x 2
at IRelationalModel Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Create(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider, bool designTime)
at IModel Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Add(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider, bool designTime)
at void Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelRuntimeInitializer.InitializeModel(IModel model, bool designTime, bool prevalidation)
at IModel Microsoft.EntityFrameworkCore.Infrastructure.ModelRuntimeInitializer.Initialize(IModel model, bool designTime, IDiagnosticsLogger<Validation> validationLogger)
at IModel Microsoft.EntityFrameworkCore.Scaffolding.Internal.RelationalScaffoldingModelFactory.Create(DatabaseModel databaseModel, ModelReverseEngineerOptions options)
at ScaffoldedModel RevEng.Core.ReverseEngineerScaffolder.ScaffoldModel(string connectionString, DatabaseModelFactoryOptions databaseOptions, ModelReverseEngineerOptions modelOptions, ModelCodeGenerationOptions codeOptions, bool removeNullableBoolDefaults, bool excludeNavigations, bool dbContextOnly, bool entitiesOnly, bool useSchemaFolders, ServiceProvider serviceProvider) in C:/Code/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerScaffolder.cs:line 216
at SavedModelFiles RevEng.Core.ReverseEngineerScaffolder.GenerateDbContext(ReverseEngineerCommandOptions options, ServiceProvider serviceProvider, List<string> schemas, string outputContextDir, string modelNamespace, string contextNamespace) in C:/Code/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerScaffolder.cs:line 62
at ReverseEngineerResult RevEng.Core.ReverseEngineerRunner.GenerateFiles(ReverseEngineerCommandOptions options) in C:/Code/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerRunner.cs:line 93
at int efreveng.Program.Main(string[] args) in C:/Code/EFCorePowerTools/src/GUI/efreveng/Program.cs:line 58
at ReverseEngineerResult EFCorePowerTools.Handlers.ReverseEngineer.ResultDeserializer.BuildResult(string output)
at async Task<ReverseEngineerResult> EFCorePowerTools.Handlers.ReverseEngineer.EfRevEngLauncher.GetOutputAsync()
at async Task<ReverseEngineerResult> EFCorePowerTools.Handlers.ReverseEngineer.EfRevEngLauncher.LaunchExternalRunnerAsync(ReverseEngineerOptions options, CodeGenerationMode codeGenerationMode)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.ReverseEngineerHandler.GenerateFilesAsync(Project project, ReverseEngineerOptions options, Tuple<bool, string> containsEfCoreReference)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.ReverseEngineerHandler.ReverseEngineerCodeFirstAsync(Project project, string optionsPath, bool onlyGenerate)
If I instead select EF Core 5 it works as expected
Further technical details
EF Core version in use: EF Core 6
EF Core Power Tools version: 2.5.832
Database engine: Postgres
Visual Studio version: Visual Studio 2022 17.0.0
Issue Analytics
- State:
- Created 2 years ago
- Comments:7 (3 by maintainers)
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@ErikEJ yes I get the same error when I use
dotnet ef scaffoldWhen i get some time i will see if i can figure out what caused the issue, but my suspension is that it was a index that included some fields, as i get some errors if i try to run my ef model with indexes that include fields.