Error message while generating a controller in Dotnet ASP.NET Core

PEERAWAT SINGKRAM 0 Reputation points
2024-09-28T08:56:58.08+00:00

I'm trying to generate a controller in Dotnet ASP.NET Core by following the tutorial on https://video2.skills-academy.com/en-us/aspnet/core/tutorials/first-mvc-app/adding-model?view=aspnetcore-8.0&tabs=visual-studio-code, but when I use the command dotnet aspnet-codegenerator controller -name MoviesController -m Movie -dc MvcMovie.Data.MvcMovieContext --relativeFolderPath Controllers --useDefaultLayout --referenceScriptLibraries --databaseProvider sqlite, I get this error message:

startIndex cannot be larger than length of string. (Parameter 'startIndex')
   at Microsoft.VisualStudio.Web.CodeGeneration.ActionInvoker.<BuildCommandLine>b__6_0()
   at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
   at Microsoft.VisualStudio.Web.CodeGeneration.ActionInvoker.Execute(String[] args)
   at Microsoft.VisualStudio.Web.CodeGeneration.CodeGenCommand.Execute(String[] args)

Here is information about my environment:

  • My model file contains:
    using System.ComponentModel.DataAnnotations;
    
    namespace MvcMovie.Models;
    
    public class Movie
    {
        public int Id { get; set; }
        public string? Title { get; set; }
        [DataType(DataType.Date)]
        public DateTime ReleaseDate { get; set; }
        public string? Genre { get; set; }
        public decimal Price { get; set; }
    }
  • My dotnet information:
    D:\MvcMovie> dotnet --info   
    .NET SDK:
     Version:           8.0.401
     Commit:            811edcc344
     Workload version:  8.0.400-manifests.b6724b7a
     MSBuild version:   17.11.4+37eb419ad
    
    Runtime Environment:
     OS Name:     Windows
     OS Version:  10.0.22631
     OS Platform: Windows
     RID:         win-x64
     Base Path:   C:\Program Files\dotnet\sdk\8.0.401\
    
    .NET workloads installed:
    Configured to use loose manifests when installing new manifests.
    There are no installed workloads to display.
    
    Host:
      Version:      8.0.8
      Architecture: x64
      Commit:       08338fcaa5
    
    .NET SDKs installed:
      8.0.401 [C:\Program Files\dotnet\sdk]
    
    .NET runtimes installed:
      Microsoft.AspNetCore.App 8.0.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      Microsoft.NETCore.App 8.0.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      Microsoft.WindowsDesktop.App 8.0.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
    Other architectures found:
      None
    
    Environment variables:
      Not set
    
    global.json file:
      Not found
    
    Learn more:
      https://aka.ms/dotnet/info
    
    Download .NET:
      https://aka.ms/dotnet/download
  • My dotnet tool list:
    PS D:\MvcMovie> dotnet tool list -g
    Package Id                       Version      Commands
    -------------------------------------------------------------------------
    dotnet-aspnet-codegenerator      8.0.5        dotnet-aspnet-codegenerator
    dotnet-ef                        8.0.8        dotnet-ef
    dotnetsay                        2.1.7        dotnetsay
  • My dotnet package list:
      D:\Users\User\Documents\selfreading\datacentric\MvcMovie> dotnet list package
    Project 'MvcMovie' has the following package references
       [net8.0]:
       Top-level Package                                       Requested   Resolved
       > Microsoft.EntityFrameworkCore.Design                  8.0.8       8.0.8
       > Microsoft.EntityFrameworkCore.SQLite                  8.0.8       8.0.8
       > Microsoft.EntityFrameworkCore.SqlServer               8.0.8       8.0.8
       > Microsoft.EntityFrameworkCore.Tools                   8.0.8       8.0.8
       > Microsoft.VisualStudio.Web.CodeGeneration.Design      8.0.5       8.0.5

I'm not sure what the issue is. Please help.

this is an Information of person who also have the same issue: https://stackoverflow.com/questions/74543076/dotnet-aspnet-codegenerator-controller-error-startindex-cannot-be-larger-than-le

ASP.NET Core
ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,545 questions
ASP.NET
ASP.NET
A set of technologies in the .NET Framework for building web applications and XML web services.
3,474 questions
ASP.NET API
ASP.NET API
ASP.NET: A set of technologies in the .NET Framework for building web applications and XML web services.API: A software intermediary that allows two applications to interact with each other.
333 questions
0 comments No comments
{count} votes

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.