[WebToolsE2E][Aspire] Cannot use command '-f' to create an aspire project with target net10.0.

[v-reinawang]

INSTALL STEPS

1. Install SDK 10.0 [10.0.100-alpha.1.24571.14]

2. dotnet nuget add source "dotnet10"

3. Install Aspire 9.0 template

   • Run dotnet new install Aspire.ProjectTemplates::9.0.0

REPRO STEPS

1. Create an Aspire App by running dotnet new aspire-starter -o aspire -f net10.0

ACTUAL
Cannot use command '-f' to create an aspire project with target net10.0.
Error: Invalid option(s):
-f net10.0
'net10.0' is not a valid value for -f. The possible values are:
net8.0 - Target net8.0
net9.0 - Target net9.0

EXPECTED
We can use the command "-f" to create an aspire project with TargetFramework of net10.0.

[v-elenafeng]

Hi @joperezr, JFYI. We started testing with NET10 and the templates currently do not support the 10.0 target framework.

[davidfowl]

Testing with .NET 10 doesn't seem like the highest priority at this moment.

[joperezr]

Thanks for reporting this issue @v-elenafeng. Yeah Aspire mostly is focusing on released versions of .NET for now, so we won't support .NET 10 templates for some time. Users that do want to use net10, they should be able to manually update the TFM of projects and that should just work.

[v-elenafeng]

Users that do want to use net10, they should be able to manually update the TFM of projects and that should just work.

Thanks Jose. Manually updating FTM works in VS, for CLI and VSCode we've filed #6765.