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c#classnamespacesusing

C# namespace / class in seperate file causing errors upon viewing

I have two projects 'HOD', and 'Controllers'. Controllers is a class library with a namespace of 'Controllers'. In the code file for HOD I am trying to reference the Controllers namespace by 'using Controllers'. I added a reference in the HOD project to Controllers and it does show up in VS2008 under the references folder.

When I build out the project I get no errors, but when I go to view the page I receive the error 'The type or namespace name 'Controllers' could not be found (are you missing a using directive or an assembly reference?)'.

Controllers.cs ( class library, Controllers project )

using System;
using System.Collections.Generic;
using System.Text;

namespace Controllers
{

    public class Controller {    }

}

index.aspx.cs ( HOD project )

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Controllers;


public partial class HOD : Page
{

    string sop() { return "sop"; }

    protected void Page_Load(object sender, EventArgs e)
    {
        blahmsg.Text = sop();
    }

}

The project is located on our webserver, and the Controllers.dll is located in the same bin folder as HOD.dll. Thanks in advance for your help!

edit: .sln contents

Microsoft Visual Studio Solution File, Format Version 10.00
# Visual Studio 2008
Project("{E24C65DC-7377-472B-9ABA-BC803B73C61A}") = "T:", "T:\", "{1D5F28B3-E6A0-4CF8-B7A3-43121225C73E}"
    ProjectSection(WebsiteProperties) = preProject
    TargetFramework = "2.0"
    Debug.AspNetCompiler.VirtualPath = "/T:"
    Debug.AspNetCompiler.PhysicalPath = "T:\"
        Debug.AspNetCompiler.TargetPath = "E:\DEV\webdev\webdev\PrecompiledWeb\T:\"
        Debug.AspNetCompiler.Updateable = "true"
        Debug.AspNetCompiler.ForceOverwrite = "true"
        Debug.AspNetCompiler.FixedNames = "false"
        Debug.AspNetCompiler.Debug = "True"
        Release.AspNetCompiler.VirtualPath = "/T:"
        Release.AspNetCompiler.PhysicalPath = "T:\"
        Release.AspNetCompiler.TargetPath = "E:\DEV\webdev\webdev\PrecompiledWeb\T:\"
        Release.AspNetCompiler.Updateable = "true"
        Release.AspNetCompiler.ForceOverwrite = "true"
        Release.AspNetCompiler.FixedNames = "false"
        Release.AspNetCompiler.Debug = "False"
        VWDPort = "53327"
    EndProjectSection
EndProject

Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HOD", "Y:\HOD\HOD.csproj", "{5F523FB7-B902-4E6E-BAA9-C2EB37D69EC7}"
EndProject

Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Controllers", "Y:\HOD\Controllers\Controllers.csproj", "{E6A16990-5FC6-4FE3-8DAB-CD2FEC8CF4FF}"
EndProject
Global
    GlobalSection(SolutionConfigurationPlatforms) = preSolution
        Debug|Any CPU = Debug|Any CPU
        Release|Any CPU = Release|Any CPU
    EndGlobalSection
    GlobalSection(ProjectConfigurationPlatforms) = postSolution
        {C8A12BBE-4483-4560-97A4-795F2E57D667}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
        {C8A12BBE-4483-4560-97A4-795F2E57D667}.Debug|Any CPU.Build.0 = Debug|Any CPU
        {C8A12BBE-4483-4560-97A4-795F2E57D667}.Release|Any CPU.ActiveCfg = Debug|Any CPU
        {C8A12BBE-4483-4560-97A4-795F2E57D667}.Release|Any CPU.Build.0 = Debug|Any CPU
        {A81C381B-1E12-49B0-8BC0-8532EF9F216F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
        {A81C381B-1E12-49B0-8BC0-8532EF9F216F}.Debug|Any CPU.Build.0 = Debug|Any CPU
        {A81C381B-1E12-49B0-8BC0-8532EF9F216F}.Release|Any CPU.ActiveCfg = Debug|Any CPU
        {A81C381B-1E12-49B0-8BC0-8532EF9F216F}.Release|Any CPU.Build.0 = Debug|Any CPU
        {BD46969E-9D1C-419A-A82C-388E35BF7C13}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
        {BD46969E-9D1C-419A-A82C-388E35BF7C13}.Debug|Any CPU.Build.0 = Debug|Any CPU
        {BD46969E-9D1C-419A-A82C-388E35BF7C13}.Release|Any CPU.ActiveCfg = Debug|Any CPU
        {BD46969E-9D1C-419A-A82C-388E35BF7C13}.Release|Any CPU.Build.0 = Debug|Any CPU
        {1D5F28B3-E6A0-4CF8-B7A3-43121225C73E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
        {1D5F28B3-E6A0-4CF8-B7A3-43121225C73E}.Debug|Any CPU.Build.0 = Debug|Any CPU
        {1D5F28B3-E6A0-4CF8-B7A3-43121225C73E}.Release|Any CPU.ActiveCfg = Debug|Any CPU
        {1D5F28B3-E6A0-4CF8-B7A3-43121225C73E}.Release|Any CPU.Build.0 = Debug|Any CPU
        {5F523FB7-B902-4E6E-BAA9-C2EB37D69EC7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
        {5F523FB7-B902-4E6E-BAA9-C2EB37D69EC7}.Debug|Any CPU.Build.0 = Debug|Any CPU
        {5F523FB7-B902-4E6E-BAA9-C2EB37D69EC7}.Release|Any CPU.ActiveCfg = Release|Any CPU
        {5F523FB7-B902-4E6E-BAA9-C2EB37D69EC7}.Release|Any CPU.Build.0 = Release|Any CPU
        {E6A16990-5FC6-4FE3-8DAB-CD2FEC8CF4FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
        {E6A16990-5FC6-4FE3-8DAB-CD2FEC8CF4FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
        {E6A16990-5FC6-4FE3-8DAB-CD2FEC8CF4FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
        {E6A16990-5FC6-4FE3-8DAB-CD2FEC8CF4FF}.Release|Any CPU.Build.0 = Release|Any CPU
    EndGlobalSection
    GlobalSection(SolutionProperties) = preSolution
        HideSolutionNode = FALSE
    EndGlobalSection
EndGlobal

Compiler output

------ Rebuild All started: Project: Controllers, Configuration: Debug Any CPU ------ C:\Windows\Microsoft.NET\Framework\v3.5\Csc.exe /noconfig /nowarn:1701,1702 /errorreport:prompt /warn:4 /define:DEBUG;TRACE /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.DataSetExtensions.dll" /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Xml.Linq.dll" /debug+ /debug:full /filealign:512 /optimize- /out:obj\Debug\Controllers.dll /target:library Class1.cs Properties\AssemblyInfo.cs

Compile complete -- 0 errors, 0 warnings Controllers -> Y:\HOD2\Controllers\bin\Debug\Controllers.dll ------ Rebuild All started: Project: HOD, Configuration: Debug Any CPU ------ C:\Windows\Microsoft.NET\Framework\v3.5\Csc.exe /noconfig /nowarn:1701,1702 /errorreport:prompt /warn:4 /define:DEBUG;TRACE /reference:Y:\HOD2\Controllers\bin\Debug\Controllers.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Configuration.dll /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.DataSetExtensions.dll" /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Drawing.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.EnterpriseServices.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Web.dll /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Web.Extensions.Design.dll" /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Web.Extensions.dll" /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Web.Mobile.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Web.Services.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll /reference:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Xml.Linq.dll" /debug+ /debug:full /optimize- /out:obj\Debug\HOD.dll /target:library index.aspx.cs index.aspx.designer.cs Properties\AssemblyInfo.cs

Compile complete -- 0 errors, 0 warnings HOD -> Y:\HOD2\bin\HOD.dll ========== Rebuild All: 2 succeeded, 0 failed, 0 skipped ==========

Solution

  • chelfers, thanks for posting sln file here. According to it, you DON'T have project reference in place.

    You can either add it from Visual Studio (delete reference, save, add reference), or instead you can add following line:

    ProjectReferences = "{E6A16990-5FC6-4FE3-8DAB-CD2FEC8CF4FF}|Controllers.dll;"

    right under 

    ProjectSection(WebsiteProperties) = preProject
    TargetFramework = "2.0"

    (and just to be safe make a copy of .sln file first).

    PS: And move to 3.5, it's XXI century :)