Swashbuckle looking for .NET 7 in a .NET 8 project

[zahalzel]

Running Swashbuckle 6.5.0 on a .NET 8 project, I only have .NET 8 SDK and runtimes installed, running into this error:

dotnet swagger tofile --serializeasv2 --output "C:\Users\zahalzel\source\repos\WebApplication1010\WebApplication1010\bin\Debug\net8.0\swagger.json" "C:\Users\zahalzel\source\repos\WebApplication1010\WebApplication1010\bin\Debug\net8.0\WebApplication1010.dll" v1

You must install or update .NET to run this application.
App: C:\Users\zahalzel\.nuget\packages\swashbuckle.aspnetcore.cli\6.5.0\tools\net7.0\any\dotnet-swagger.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '7.0.0' (x64)
.NET location: C:\Program Files\dotnet\
The following frameworks were found:
  8.0.0-rc.1.23419.4 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Learn more:
https://aka.ms/dotnet/app-launch-failed
To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=7.0.0&arch=x64&rid=win-x64&os=win10

[olegd-superoffice]

@zahalzel You can set environment variable DOTNET_ROLL_FORWARD=LatestMajor and it will run. Not sure if this would have any side-effects though.

[Berthelmaster]

@zahalzel Did what @olegd-superoffice mentioned work? We have the same problem now :(

[zahalzel]

@Berthelmaster I was able to get our scenario to work by setting two environment variables:
DOTNET_ROLL_FORWARD=LatestMajor
DOTNET_ROLL_FORWARD_TO_PRERELEASE=1

[bexxx]

I can confirm this work for me using an Azure DevOps build pipeline.

I've added
variables:
DOTNET_ROLL_FORWARD: LatestMajor

to the build and it started to work.

[harboe]

just wanna add if you're using the .csproj to build your API files. it's possible to add the environment variables to the Exec command like:

<Exec Command="dotnet swagger tofile --output "v1.json" $(MSBuildProjectDirectory)/$(OutputPath)$(AssemblyName).dll v1" EnvironmentVariables="DOTNET_ROLL_FORWARD=LatestMajor" />

[Lonli-Lokli]

Is this package still maintained?? No commits for the last 11 months

[soroshsabz]

Is this package still maintained?? No commits for the last 11 months

ITNOA

related to #2759

[Havunen]

This is fixed in DotSwashbuckle, can you test using it please.
https://github.com/Havunen/DotSwashbuckle
https://www.nuget.org/packages/DotSwashbuckle.AspNetCore

[martincostello]

I'm going to close this in favour of #2792, as going through triaging the open issues I'm spotting a common theme and it's easier to manage one issue. Please track that issue for further updates.

If this issue isn't resolved once we have added support for net8.0, please open a new issue.