The Type or namespace ALMSTWKND could not be found...

I am receiving between 20 to 60 errors stating:

Severity Code Description Project File Line Suppression State Error CS0246 The type or namespace name 'ALMSTWKND' could not be found (are you missing a using directive or an assembly reference?) App Name C:\Users\realj\Documents\Visual Studio 2019\App Name\GettingStarted.cs 2 Active

However, I am referencing this DLL and have written using directives all throughout my code where required. I cannot post all the code due to how many files and using directives there are, but here is a bit:

using App_Name.Properties;
using ALMSTWKND.UI.WindowsForms.Controls;
using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Media;
using System.Runtime.CompilerServices;

Something which may be of importance is that this project was recently decompiled using JustDecompile because I lost the original source dating back to 2009.

I have seen other questions of this nature on StackOverflow, where the suggestions were to make sure that each project targets the same version of the .NET framework. I have made sure that these projects both target the same version.

Project References

Code update:

using System;
using System.IO;
using System.Reflection;
using System.Windows.Forms;
 
namespace App_Name
{
    internal static class Program
    {
        public static Version version;
 
        public static string appVersion;
 
        public static string AppDataDirectory;
 
        public static string ColorHistoryFilePath;
 
        public static History history;
 
        static Program()
        {
            Program.version = Assembly.GetExecutingAssembly().GetName().Version;
            Program.AppDataDirectory = string.Concat(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "\\App Name\\");
            Program.ColorHistoryFilePath = string.Concat(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "\\App Name\\.history");
        }
 
        public static void EnsureAppDataDirectoryExists()
        {
            if (!Directory.Exists(Program.AppDataDirectory))
            {
                Directory.CreateDirectory(Program.AppDataDirectory);
            }
        }
 
        [STAThread]
        private static void Main()
        {
            Program.appVersion = Application.ProductVersion;
            Program.EnsureAppDataDirectoryExists();
            if (History.Exists(Program.ColorHistoryFilePath))
            {
                History.Load(Program.ColorHistoryFilePath);
            }
 
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Window());
        }
    }
}

Screenshot update:

Exception screenshot

Update: Upon changing the following line of code inside the Program.cs file Application.Run(new Window()); to Application.Run(new About()); I can get the About dialog to open without error.

Update 2: I got it working by commenting-out the following lines inside the Window.cs file:

    //this.notificationIcon = null;
    //this.notificationIcon.Icon = (System.Drawing.Icon)componentResourceManager.GetObject("notificationIcon.Icon");

CodePudding user response：

I finally got the application to build and run correctly by commenting-out these lines in the Window.cs file:

//this.notificationIcon = null;
//this.notificationIcon.Icon = (System.Drawing.Icon)componentResourceManager.GetObject("notificationIcon.Icon");