如何将所有解决方案项目 .Net framework 4.5.1 升级到 4.8 Visual Studio 2019

Question

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: I tried 'TargetFrameworkMigrator', but it doesn't work with (VS2019) / .net 4.8.

Thank you for your help.

Answer 1

Relplace all occurances of

<TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>

with

<TargetFrameworkVersion>v4.8</TargetFrameworkVersion>

in the all *.csproj files. You can use Notepad++ for it.

Answer 2

VS unfortunately doesn't provide an easy way for .NET framework, and every project file has it's own setting. So the easiest way is probably a "Edit -> Find and Replace- > Replace in Files" on the directory in VS or any text editor you like.

For Framework projects, in every .csproj you want <TargetFrameworkVersion>v4.8</TargetFrameworkVersion> (from <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion> ), if you have any packages.config , there is targetFramework="net48" (from targetFramework="net451" ). You will need to reload the solution after changing for VS to see them.

Answer 3

So i gone through the PR's on Git, so you are not alone. Someone has already posted a release package which works for .NET 4.8 with VS2019

Here is the OPEN PRs, which is waiting to be merged

4.7

4.8 and VS 2019

release for VS2019 which actually works, according to the commit and comments. Give it a try