Dnn library is not found.

Solving the issue “DNN library is not found”

When encountering the error message “DNN library is not found” in your application, it usually indicates that the DotNetNuke (DNN) library is not properly installed or referenced. Here are a few steps to troubleshoot and resolve this issue:

1. Ensure DotNetNuke library is installed:

Make sure that the DNN library is properly installed on your server or local environment. You can download the latest version of the library from the official DNN website (https://www.dnnsoftware.com).

2. Check project references:

In your project, verify if the DNN library reference has been added correctly. To do this, right-click on your project in the solution explorer, and select “Add Reference”. In the dialog that appears, browse and locate the DNN library (usually a .dll file) and add it to the project references. Ensure that the reference is valid and not broken.

3. Verify the namespace import:

Make sure that the appropriate namespace for the DNN library is imported in your code files. The namespace may differ depending on the version of the DNN library, but it’s typically something like: using DotNetNuke; or using DotNetNuke.Library;. Check your code files to ensure the correct namespace is imported.

4. Confirm configuration settings:

Ensure that the DNN library configuration settings are correctly configured in your project. This includes the relevant settings in the web.config or app.config file. Double-check the settings to ensure they match the DNN library requirements and are properly configured.

By following these steps, you should be able to resolve the “DNN library is not found” issue in your application. Remember to double-check the installation, references, namespaces, and configuration settings to ensure everything is properly set up.

Example:

using System;
using DotNetNuke;

namespace MyDNNApp
{
    public class Program
    {
        static void Main(string[] args)
        {
            // Your code here
            var user = new UserController();
            var userInfo = user.GetUserById(1);
            Console.WriteLine(userInfo.DisplayName);
        }
    }
}