PresentationFramework problem

Question

I'm developing an app on VS2022 C# .NET4.5.2 WPF upgraded to .NET4.8

After the upgrade when running the .exe file on WIN11 I get the following error:

"Not possible to load th efile or assembly 'PresentationFramework', Version 3.0.0.0, Culture=neutral PublicKeyToken=31bf3856ad364e35 or one of its relative dependencies. Not possible to find the specified file"

How can I solve this problem?

Answer 1

when you project is build for .NET Framework 4.8, it should load PresentationFramework 4.0,
not 3.0.
When you look at the project referneces in Visual Studio: what does it display for PresentationFramework?

Answer 2

Hi,@silvano diliso. Welcome to Microsoft Q&A. It seems like there might be a mismatch in the version of the PresentationFramework assembly that your application is trying to load and the version available in your environment. You could try the following steps:

Check references: Make sure your project references the correct version of the PresentationFramework assembly.

Check App.Config: If your application has an app.config file, remove any binding redirects related to PresentationFramework.

Check dependencies: If your project depends on any third-party libraries or packages, update all dependencies to the latest version that supports .NET Framework 4.8.

Check target framework: Double check that your project is correctly targeting .NET Framework 4.8. You can verify this by right-clicking the project in Visual Studio, selecting Properties, and navigating to the Application tab.

Check your environment: Make sure .NET Framework 4.8 is installed on your Windows 11 computer. If necessary, you can download and install it from the Microsoft website.

Rebuild Solution: After making any necessary changes, rebuild your solution to ensure that all changes are applied correctly.

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