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Questions tagged [.net-4.8]

For questions specific to the usage and features of version 4.8 of Microsoft's .Net framework.

999 questions
59
votes
11 answers

Visual Studio Can't Target .NET Framework 4.8

I'm having some issues creating a project that targets .NET Framework 4.8. I am using Visual Studio 2019, upgraded to version 16.2.5. I have also installed the .NET Framework 4.8 Developer Pack. From the Visual Studio Installer, I don't see any…
ElliotSchmelliot
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37
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2 answers

Project 'ClassLibrary1.csproj' targets 'netstandard2.1'. It cannot be referenced by a project that targets '.NETFramework,Version=v4.8'

I have some class library projects in targets netstandard2.1. When I referenced that to my WPF project in target .NET Framework v4.8, On building time I get an error: Severity Code Description Project File Line Suppression State Error …
Behzad
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25
votes
3 answers

Migrate .NET Framework 4.8 to .NET 5

Recently Microsoft has release .NET 5. If we want to upgrade .NET Framework 4.8 to .net 5 then how can we accomplish this task. Please Note : I had already upgrade Visual Studio 18.2 with all latest component and .net Framework 5. But in project…
Dave Kapildev
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21
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1 answer

Why .NET 4.8 is recommended version despite 4.8.1 latest version available

Looking at the available .NET Frameworks, 4.8.1 is the latest. However 4.8 is recommended by Microsoft here. I am curious why is that. Is 4.8.1 in beta or something? I couldn't find any information about that.
whoami
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19
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2 answers

NETSDK1135 SupportedOSPlatformVersion 10.0.19041.0 cannot be higher than TargetPlatformVersion 7.0

I am trying to convert a .NET Framework WPF app to .NET 5 I ran https://github.com/dotnet/try-convert, and removed some incompatible DLL refs. Now, when I try to compile, I am presented with NETSDK1135 SupportedOSPlatformVersion 10.0.19041.0 cannot…
Julien
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19
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5 answers

How to upgrade all solution projects .Net framework 4.5.1 to 4.8 Visual Studio 2019

I have a solution in Visual Studio 2019 with many C # projects. I need to retarget all of the projects from the .NET Framework 4.5.1 to 4.8. Is it possible to change target at once or do I have to do it separately with every single one of them? PS:…
mike
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18
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1 answer

How to change .NET Framework to .NET Standard/Core in Visual Studio?

I have a solution in C# in Visual Studios. It was first created in .NET Framework. I want to convert the project to .NET Standard/Core. If I go into project --> properties I see the attached screen, where Target Framework is .NET Framework. How am I…
ENV
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16
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3 answers

Net Framework 4.8 EF6 EDMX T4 Error _generationEnvironment is NULL

This started with an EDMX suddenly not generating class files. The .context.cs file contains the class declaration like public virtual DbSet myTable { get; set; } but the actual class files are not being generated. Both .tt files are…
Serexx
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15
votes
1 answer

Rounding of last digit changes after Windows .NET update

After Windows has updated, some calculated values have changed in the last digit, e.g. from -0.0776529085243926 to -0.0776529085243925. The change is always down by one and both even and odd numbers are affected. This seems to be related to…
Jaroslav K
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13
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2 answers

Create a Linux-based Docker file for .NET Framework project

I have an ASP.Net Framework 4.8 project. I want to create a Linux-based Docker file for this project, but I can't find a Linux-based image to use as a base image in my Docker file for .NET Framework. How can I create a Docker file for this?
Hamed Hajiloo
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13
votes
1 answer

Enabling TLS 1.2 without changing code in .NET

I have .NET 4.5.2 application that is using SmtpClient to send emails. The application is installed on Windows 2012 R2 server. When I disable TLS 1 and TLS 1.1 and enable only TLS 1.2, the application stops sending mails. I think that's because .NET…
LP13
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11
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6 answers

create unit tests for .net 6.0

I created a .Net 6 class library and now I am trying to create a test project. a .net 6 test project is not available. Online I found the information to use .Net Framework or .Net core in order to test. I created a .Net Framework 4.8 test project an…
julian bechtold
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11
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1 answer

Difference in lambda expressions between full .NET framework and .NET Core

Is there a difference in the declaration of lambda expressions between the .NET Framework and .NET Core? The following expressions compiles in .NET Core: var lastShift = timeline.Appointments …
BendEg
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11
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3 answers

Nullable reference types in .NET Framework projects not working with IntelliSense

When I create a new Console App (.NET Framework 4.8), and try to use C# 8's nullable reference types, I see the following: And, I get this warning in my build output: warning CS8632: The annotation for nullable reference types should only be used…
Rudey
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10
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1 answer

Web API as a windows service

So I'm creating a new .Net Framework 4.8 Web API in Visual Studio 2019 and I'm wanting to know how to create the API as a windows service? I can't seem to find any examples or online resources to do so. I can run the API locally in VS and it opens…
user616
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