Error: QRCode does not contain a Constructor that takes 1 argument

[sonisp]

Hi,
I have downloaded and installed the Nuget Package QRCoder 1.4.2 and when I am trying to use the Constructor I am getting the below two bugs.

Type of issue

Bug 1: QRCode does not contain a Constructor that takes 1 argument . Attached reference QRCode_Constructor_Bug.png
Bug 2: QRCode does not contain a definition for GetGraphic and no accessible method..etc. Attached reference QRCode_GetGraphic_Bug.png

Steps to Reproduce (for bugs)

1. Install Nuget Pacakge QRCoder (ver 1.4.2) in Visual Studio Console App.
2. Copy code from GIT Sample

Your Environment

1. QRCoder (ver 1.4.2)
2. Visual Studio 2019
3. Console App . Net Framework 4.7.2
4. Windows 10

[codebude]

Hi @sonisp ,

the errors look a little bit strange. Can you please show/post the part of your code with the using-statements? Have you added any other library, that contains a class named "QRCode"?

I tried to reproduce the error and created a minimal project (VS2022, .NET4.7.2, QRCoder 1.4.2) with the following code and everything worked as expected:

using QRCoder;
using System.Drawing;

namespace ConsoleAppQRCodeTest
{
    internal class Program
    {
        static void Main(string[] args)
        {
            QRCodeGenerator qrGenerator = new QRCodeGenerator();
            QRCodeData qrCodeData = qrGenerator.CreateQrCode("The text which should be encoded.", QRCodeGenerator.ECCLevel.Q);
            QRCode qrCode = new QRCode(qrCodeData);
            Bitmap qrCodeImage = qrCode.GetGraphic(20);

            System.Console.WriteLine("Successfully generated QR code.\nPress <any> key to end the program.");
            System.Console.ReadKey();
        }
    }
}

Feel free to download my test project and try it yourself. If it runs, there must be another error in your app: ConsoleAppQRCodeTest.zip

[codebude]

Hi @sonisp ,

could you try out my sample project and if so, does it run on your environment?

[sonisp]

Hi @codebude, will try and revert. Ty

[codebude]

Since I haven't heard anything, I guess it worked out and will close the issue now. If you still have problems, let me know, then we can re-open the issue.

[jianliulin]

<TargetFramework>net6.0-windows</TargetFramework>  is ok

<TargetFramework>net6.0</TargetFramework>  is error

It may be caused here：

[codebude]

@jianliulin it can't work in net6.0... #361 (comment)