Using Nuget Package in runtime library

BitSmithy 1,951

Hello,

I have a runtime library, where I have some classes which I use in my apps.

One class in the library uses nuget package.

I compile the library and attach to my app. Next I try to use the class in the app in Page Loadded event which such code:

private async void Page_Loaded(object sender, RoutedEventArgs e)
{
	MyClassFromRuntimeLibrary mc = new MyClassFromRuntimeLibrary();
}

After runing app throws the exception:

System.IO.FileNotFoundException: „Could not load file or assembly 'zxing, Version=0.16.9.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60'. The system cannot find the file specified.”

This exception tells that nuget package which is attached to the runtime class library cant be found.

Please tell me what I am doing wrong? How to use nuget packages in runtime class library

Viorel 114K Reputation points

2024-06-04T10:02:16.1333333+00:00

How did you attach the library to application? Maybe, in the main application, you should add a reference to the library project, as usually. Or, to work around the issue, the NuGet package should be added to the application too.
BitSmithy 1,951 Reputation points

2024-06-05T09:02:33.9733333+00:00

I can try add NuGet Package to the app, but I want to get know if there is a way to not to do this.

Maybe I compile runtime class in wrong way and the compiler doesnt include NuGet Package classes to the compilation. Generally If I have compiled classes, I want them to include everything that is needed to work.
Junjie Zhu - MSFT 16,391 Reputation points Microsoft Vendor

2024-06-11T08:43:03.1033333+00:00

Hi @BitSmithy ,What NuGet did you use? Can you briefly describe the steps to reproduce?

You can also check this thread.
BitSmithy 1,951 Reputation points

2024-06-18T13:19:27.46+00:00

This thread was very helpfull to understand what is going about generally, but I am not sure what is possible in my case.

I have:

-App as UWP

-Runtime component and it's classes as UWP.

-Nuget Package is ZXing.Net

Must I add nuget package to the app, or adding it to the runtime librarry is enough?
Junjie Zhu - MSFT 16,391 Reputation points Microsoft Vendor

2024-06-19T09:52:40.81+00:00

Hi @BitSmithy ,

If you only have one or two nuget packages, it is recommended that you reference them in the main project, which is the most convenient option.
BitSmithy 1,951 Reputation points

2024-06-20T12:56:18.5+00:00

Is there any way to avoid this? I create runtime library to benefir from reusability. I dont want to remember if I must install something else, except the library.
Junjie Zhu - MSFT 16,391 Reputation points Microsoft Vendor

2024-06-24T09:00:05.38+00:00

Hi @BitSmithy ,

I do a simple test today, and use ZXing.QrCode in Class1. Then use Class1 in MainPage. but it all works. Am I missing something? Can you reproduce this issue in blank projects?

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Using Nuget Package in runtime library