Issue while reverse engineering a table without primary key column postgres DB

[chandusekhar]

System.InvalidOperationException: Reverse engineer error:
System.NullReferenceException: Object reference not set to an instance of an object.
at string Microsoft.EntityFrameworkCore.Scaffolding.Internal.CSharpDbContextGenerator.TransformText()
at string Microsoft.EntityFrameworkCore.Scaffolding.Internal.CSharpModelGenerator.ProcessTemplate(ITextTransformation transformation)
at ScaffoldedModel Microsoft.EntityFrameworkCore.Scaffolding.Internal.CSharpModelGenerator.GenerateModel(IModel model, ModelCodeGenerationOptions 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) in C:/Code/Github/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerScaffolder.cs:line 381
at SavedModelFiles RevEng.Core.ReverseEngineerScaffolder.GenerateDbContext(ReverseEngineerCommandOptions options, List schemas, string outputContextDir, string modelNamespace, string contextNamespace) in C:/Code/Github/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerScaffolder.cs:line 99
at ReverseEngineerResult RevEng.Core.ReverseEngineerRunner.GenerateFiles(ReverseEngineerCommandOptions options) in C:/Code/Github/EFCorePowerTools/src/GUI/RevEng.Core/ReverseEngineerRunner.cs:line 94
at async Task EfReveng.Program.Main(string[] args) in C:/Code/Github/EFCorePowerTools/src/GUI/efreveng/Program.cs:line 69

at ReverseEngineerResult EFCorePowerTools.Handlers.ReverseEngineer.ResultDeserializer.BuildResult(string output)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.EfRevEngLauncher.GetOutputAsync()
at async Task EFCorePowerTools.Handlers.ReverseEngineer.EfRevEngLauncher.LaunchExternalRunnerAsync(ReverseEngineerOptions options, CodeGenerationMode codeGenerationMode, Project project)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.ReverseEngineerHandler.GenerateFilesAsync(Project project, ReverseEngineerOptions options, Tuple<bool, string> containsEfCoreReference, bool onlyGenerate)
at async Task EFCorePowerTools.Handlers.ReverseEngineer.ReverseEngineerHandler.ReverseEngineerCodeFirstAsync(Project project, string optionsPath, bool onlyGenerate, bool fromSqlProj)

[ErikEJ]

It is an EF Core bug, but I need a repro.

[ErikEJ]

Duplicate of dotnet/efcore#29516