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Backport of: #51509

Implements the first part of the spec mentioned in:

* "Pre-run evaluation"
* If the project is multi-targeted, containing the
`$(TargetFrameworks)` property _and_ that property has more than
one item in it, and `-f` was not supplied...
* Prompt the user to select from a list of the
`$(TargetFrameworks)`
* Non-interactive mode will give a friendly error message,
suggesting to supply the `-f` property, listing available target
frameworks in the project.

Add interactive target framework selection to dotnet run

When running a multi-targeted project without specifying --framework, dotnet run now:

  • Prompts interactively (using Spectre.Console) to select a framework with arrow keys

  • Shows a formatted error list in non-interactive mode with available frameworks

  • Handles selection early before project build/evaluation

  • Removes redundant multi-TFM error checking from ThrowUnableToRunError()

  • Adds a few unit tests to validate these changes.

Other changes:

  • Pin darc to "1.1.0-beta.25514.2"

)

Implements the first part of the spec mentioned in:

https://github.com/dotnet/sdk/blob/522c88a6abfc4a011556f839d15844d07ba62cd9/documentation/specs/dotnet-run-for-maui.md?plain=1#L35-L46

Add interactive target framework selection to `dotnet run`

When running a multi-targeted project without specifying `--framework`, `dotnet run` now:

* Prompts interactively (using `Spectre.Console`) to select a framework with arrow keys

* Shows a formatted error list in non-interactive mode with available frameworks

* Handles selection early before project build/evaluation

* Removes redundant multi-TFM error checking from `ThrowUnableToRunError()`

* Adds a few unit tests to validate these changes.

Other changes:

* Pin `darc` to "1.1.0-beta.25514.2"

Co-authored-by: Chet Husk <chusk3@gmail.com>
Co-authored-by: Premek Vysoky <premek.vysoky@microsoft.com>
@jonathanpeppers jonathanpeppers merged commit da88132 into release/10.0.2xx Nov 24, 2025
25 checks passed
@jonathanpeppers jonathanpeppers deleted the dev/peppers/10.0.2xx-tf-selection branch November 24, 2025 14:43
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3 participants